867399560 has 16 divisors (see below), whose sum is σ = 1951649100. Its totient is φ = 346959808.

The previous prime is 867399557. The next prime is 867399563. The reversal of 867399560 is 65993768.

It is an interprime number because it is at equal distance from previous prime (867399557) and next prime (867399563).

It can be written as a sum of positive squares in 2 ways, for example, as 734735236 + 132664324 = 27106^2 + 11518^2 .

It is not an unprimeable number, because it can be changed into a prime (867399563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10842455 + ... + 10842534.

Almost surely, 2^867399560 is an apocalyptic number.

It is an amenable number.

867399560 is an abundant number, since it is smaller than the sum of its proper divisors (1084249540).

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

867399560 is a wasteful number, since it uses less digits than its factorization.

867399560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21685000 (or 21684996 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 867399560 is about 29451.6478316579. The cubic root of 867399560 is about 953.6881781186.

The spelling of 867399560 in words is "eight hundred sixty-seven million, three hundred ninety-nine thousand, five hundred sixty".