865627490 has 64 divisors (see below), whose sum is σ = 1942133760. Its totient is φ = 270466560.

The previous prime is 865627489. The next prime is 865627523. The reversal of 865627490 is 94726568.

865627490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65870 + ... + 77910.

It is an arithmetic number, because the mean of its divisors is an integer number (30345840).

Almost surely, 2^865627490 is an apocalyptic number.

865627490 is an abundant number, since it is smaller than the sum of its proper divisors (1076506270).

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

865627490 is a wasteful number, since it uses less digits than its factorization.

865627490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12147.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 865627490 is about 29421.5480558043. The cubic root of 865627490 is about 953.0382837026.

The spelling of 865627490 in words is "eight hundred sixty-five million, six hundred twenty-seven thousand, four hundred ninety".