881697864 has 32 divisors (see below), whose sum is σ = 2263821120. Its totient is φ = 285955776.

The previous prime is 881697857. The next prime is 881697923. The reversal of 881697864 is 468796188.

It is a super-2 number, since 2×881697864² = 1554782246764324992, which contains 22 as substring.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495564 + ... + 497339.

It is an arithmetic number, because the mean of its divisors is an integer number (70744410).

Almost surely, 2^881697864 is an apocalyptic number.

It is an amenable number.

881697864 is an abundant number, since it is smaller than the sum of its proper divisors (1382123256).

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

881697864 is a wasteful number, since it uses less digits than its factorization.

881697864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992949 (or 992945 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 57.

The square root of 881697864 is about 29693.3976499827. The cubic root of 881697864 is about 958.8998769356.

The spelling of 881697864 in words is "eight hundred eighty-one million, six hundred ninety-seven thousand, eight hundred sixty-four".