870663408 has 40 divisors (see below), whose sum is σ = 2280034128. Its totient is φ = 286244352.

The previous prime is 870663389. The next prime is 870663421. The reversal of 870663408 is 804366078.

870663408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 870663408.

It is a congruent number.

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, 120735 + ... + 127742.

Almost surely, 2^870663408 is an apocalyptic number.

It is an amenable number.

870663408 is an abundant number, since it is smaller than the sum of its proper divisors (1409370720).

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

870663408 is a wasteful number, since it uses less digits than its factorization.

870663408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248561 (or 248555 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 870663408 is about 29507.0060833016. The cubic root of 870663408 is about 954.8828590913.

The spelling of 870663408 in words is "eight hundred seventy million, six hundred sixty-three thousand, four hundred eight".