869785376 has 24 divisors (see below), whose sum is σ = 1713639564. Its totient is φ = 434575360.

The previous prime is 869785351. The next prime is 869785451. The reversal of 869785376 is 673587968.

It can be written as a sum of positive squares in 2 ways, for example, as 767290000 + 102495376 = 27700^2 + 10124^2 .

It is a super-2 number, since 2×869785376² = 1513053200606922752, which contains 22 as substring.

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, 38216 + ... + 56568.

Almost surely, 2^869785376 is an apocalyptic number.

It is an amenable number.

869785376 is a deficient number, since it is larger than the sum of its proper divisors (843854188).

869785376 is a wasteful number, since it uses less digits than its factorization.

869785376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19844 (or 19836 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 59.

The square root of 869785376 is about 29492.1239655607. The cubic root of 869785376 is about 954.5617630570.

The spelling of 869785376 in words is "eight hundred sixty-nine million, seven hundred eighty-five thousand, three hundred seventy-six".