3698947688 has 16 divisors (see below), whose sum is σ = 6945691680. Its totient is φ = 1846763248.

The previous prime is 3698947687. The next prime is 3698947697. The reversal of 3698947688 is 8867498963.

It is not an unprimeable number, because it can be changed into a prime (3698947687) 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, 333020 + ... + 343947.

It is an arithmetic number, because the mean of its divisors is an integer number (434105730).

Almost surely, 2^3698947688 is an apocalyptic number.

It is an amenable number.

3698947688 is a deficient number, since it is larger than the sum of its proper divisors (3246743992).

3698947688 is a wasteful number, since it uses less digits than its factorization.

3698947688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677656 (or 677652 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 68.

The square root of 3698947688 is about 60818.9747365080. The cubic root of 3698947688 is about 1546.5337301106.

The spelling of 3698947688 in words is "three billion, six hundred ninety-eight million, nine hundred forty-seven thousand, six hundred eighty-eight".