3700813649 has 8 divisors (see below), whose sum is σ = 3986177832. Its totient is φ = 3415547520.

The previous prime is 3700813639. The next prime is 3700813679. The reversal of 3700813649 is 9463180073.

It can be written as a sum of positive squares in 4 ways, for example, as 2155930624 + 1544883025 = 46432^2 + 39305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3700813649 - 2²⁸ = 3432378193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3700813639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66389 + ... + 108669.

It is an arithmetic number, because the mean of its divisors is an integer number (498272229).

Almost surely, 2^3700813649 is an apocalyptic number.

It is an amenable number.

3700813649 is a deficient number, since it is larger than the sum of its proper divisors (285364183).

3700813649 is a wasteful number, since it uses less digits than its factorization.

3700813649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49027.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 3700813649 is about 60834.3130889139. The cubic root of 3700813649 is about 1546.7937397814.

The spelling of 3700813649 in words is "three billion, seven hundred million, eight hundred thirteen thousand, six hundred forty-nine".