870464826 has 64 divisors (see below), whose sum is σ = 2411688960. Its totient is φ = 226093680.

The previous prime is 870464807. The next prime is 870464827. The reversal of 870464826 is 628464078.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (870464827) 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 31 ways as a sum of consecutive naturals, for example, 100516 + ... + 108831.

It is an arithmetic number, because the mean of its divisors is an integer number (37682640).

Almost surely, 2^870464826 is an apocalyptic number.

870464826 is an abundant number, since it is smaller than the sum of its proper divisors (1541224134).

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

870464826 is a wasteful number, since it uses less digits than its factorization.

870464826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209376 (or 209370 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 870464826 is about 29503.6408939643. The cubic root of 870464826 is about 954.8102566119.

The spelling of 870464826 in words is "eight hundred seventy million, four hundred sixty-four thousand, eight hundred twenty-six".