870642464 has 24 divisors (see below), whose sum is σ = 1717477020. Its totient is φ = 434457856.

The previous prime is 870642439. The next prime is 870642467. The reversal of 870642464 is 464246078.

870642464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 828288400 + 42354064 = 28780^2 + 6508^2 .

It is not an unprimeable number, because it can be changed into a prime (870642467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10439 + ... + 43014.

Almost surely, 2^870642464 is an apocalyptic number.

It is an amenable number.

870642464 is a deficient number, since it is larger than the sum of its proper divisors (846834556).

870642464 is a wasteful number, since it uses less digits than its factorization.

870642464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53972 (or 53964 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 870642464 is about 29506.6511824029. The cubic root of 870642464 is about 954.8752023907.

The spelling of 870642464 in words is "eight hundred seventy million, six hundred forty-two thousand, four hundred sixty-four".