864227952 has 60 divisors (see below), whose sum is σ = 2764160880. Its totient is φ = 246921984.

The previous prime is 864227899. The next prime is 864228011. The reversal of 864227952 is 259722468.

It is a super-2 number, since 2×864227952² = 1493779906036228608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 864227898 and 864227907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427677 + ... + 429692.

It is an arithmetic number, because the mean of its divisors is an integer number (46069348).

Almost surely, 2^864227952 is an apocalyptic number.

It is an amenable number.

864227952 is an abundant number, since it is smaller than the sum of its proper divisors (1899932928).

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

864227952 is a wasteful number, since it uses less digits than its factorization.

864227952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857390 (or 857381 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 864227952 is about 29397.7541999385. The cubic root of 864227952 is about 952.5243856778.

The spelling of 864227952 in words is "eight hundred sixty-four million, two hundred twenty-seven thousand, nine hundred fifty-two".