3957839652 has 48 divisors (see below), whose sum is σ = 10113929280. Its totient is φ = 1197153408.

The previous prime is 3957839651. The next prime is 3957839653. The reversal of 3957839652 is 2569387593.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3957839651) and next prime (3957839653).

It is a super-2 number, since 2×3957839652² = 31328989421886962208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3957839592 and 3957839601.

It is not an unprimeable number, because it can be changed into a prime (3957839651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205803 + ... + 224210.

It is an arithmetic number, because the mean of its divisors is an integer number (210706860).

Almost surely, 2^3957839652 is an apocalyptic number.

It is an amenable number.

3957839652 is an abundant number, since it is smaller than the sum of its proper divisors (6156089628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3957839652 is a wasteful number, since it uses less digits than its factorization.

3957839652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430092 (or 430090 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 57.

The square root of 3957839652 is about 62911.3634568509. The cubic root of 3957839652 is about 1581.8042269286.

The spelling of 3957839652 in words is "three billion, nine hundred fifty-seven million, eight hundred thirty-nine thousand, six hundred fifty-two".