3954800845 has 4 divisors (see below), whose sum is σ = 4745761020. Its totient is φ = 3163840672.

The previous prime is 3954800813. The next prime is 3954800869. The reversal of 3954800845 is 5480084593.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3082248324 + 872552521 = 55518^2 + 29539^2 .

It is a cyclic number.

It is not a de Polignac number, because 3954800845 - 2⁵ = 3954800813 is a prime.

It is a super-2 number, since 2×3954800845² = 31280899447225428050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3954800795 and 3954800804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395480080 + ... + 395480089.

It is an arithmetic number, because the mean of its divisors is an integer number (1186440255).

Almost surely, 2^3954800845 is an apocalyptic number.

It is an amenable number.

3954800845 is a deficient number, since it is larger than the sum of its proper divisors (790960175).

3954800845 is an equidigital number, since it uses as much as digits as its factorization.

3954800845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790960174.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 3954800845 is about 62887.2073239065. The cubic root of 3954800845 is about 1581.3992898151.

The spelling of 3954800845 in words is "three billion, nine hundred fifty-four million, eight hundred thousand, eight hundred forty-five".