3813000749 has 4 divisors (see below), whose sum is σ = 3875509020. Its totient is φ = 3750492480.

The previous prime is 3813000727. The next prime is 3813000757. The reversal of 3813000749 is 9470003183.

3813000749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9470003183 = 73 ⋅129726071.

It can be written as a sum of positive squares in 2 ways, for example, as 686178025 + 3126822724 = 26195^2 + 55918^2 .

It is a cyclic number.

It is not a de Polignac number, because 3813000749 - 2¹² = 3812996653 is a prime.

It is a super-2 number, since 2×3813000749² = 29077949423749122002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813000799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31254044 + ... + 31254165.

It is an arithmetic number, because the mean of its divisors is an integer number (968877255).

Almost surely, 2^3813000749 is an apocalyptic number.

It is an amenable number.

3813000749 is a deficient number, since it is larger than the sum of its proper divisors (62508271).

3813000749 is an equidigital number, since it uses as much as digits as its factorization.

3813000749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62508270.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 3813000749 is about 61749.4999898785. The cubic root of 3813000749 is about 1562.2683345838.

The spelling of 3813000749 in words is "three billion, eight hundred thirteen million, seven hundred forty-nine", and thus it is an aban number.