3857706396 has 18 divisors (see below), whose sum is σ = 9751424592. Its totient is φ = 1285902120.

The previous prime is 3857706379. The next prime is 3857706397. The reversal of 3857706396 is 6936077583.

3857706396 is a `hidden beast` number, since 3 + 8 + 577 + 0 + 63 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857706397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53579220 + ... + 53579291.

Almost surely, 2^3857706396 is an apocalyptic number.

3857706396 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3857706396 is an abundant number, since it is smaller than the sum of its proper divisors (5893718196).

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

3857706396 is a wasteful number, since it uses less digits than its factorization.

3857706396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107158521 (or 107158516 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The square root of 3857706396 is about 62110.4370939378. The cubic root of 3857706396 is about 1568.3502483366.

The spelling of 3857706396 in words is "three billion, eight hundred fifty-seven million, seven hundred six thousand, three hundred ninety-six".