387769656 has 16 divisors (see below), whose sum is σ = 969424200. Its totient is φ = 129256544.

The previous prime is 387769637. The next prime is 387769663. The reversal of 387769656 is 656967783.

It is a super-2 number, since 2×387769656² = 300730612228716672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 387769596 and 387769605.

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, 8078511 + ... + 8078558.

Almost surely, 2^387769656 is an apocalyptic number.

It is an amenable number.

387769656 is an abundant number, since it is smaller than the sum of its proper divisors (581654544).

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

387769656 is a wasteful number, since it uses less digits than its factorization.

387769656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16157078 (or 16157074 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 57.

The square root of 387769656 is about 19691.8677631148. The cubic root of 387769656 is about 729.2189406761.

The spelling of 387769656 in words is "three hundred eighty-seven million, seven hundred sixty-nine thousand, six hundred fifty-six".