870779464 has 8 divisors (see below), whose sum is σ = 1632711510. Its totient is φ = 435389728.

The previous prime is 870779419. The next prime is 870779473. The reversal of 870779464 is 464977078.

It can be written as a sum of positive squares in only one way, i.e., 869660100 + 1119364 = 29490^2 + 1058^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54423709 + ... + 54423724.

Almost surely, 2^870779464 is an apocalyptic number.

It is an amenable number.

870779464 is a deficient number, since it is larger than the sum of its proper divisors (761932046).

870779464 is a wasteful number, since it uses less digits than its factorization.

870779464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108847439 (or 108847435 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 52.

The square root of 870779464 is about 29508.9726015665. The cubic root of 870779464 is about 954.9252845799.

The spelling of 870779464 in words is "eight hundred seventy million, seven hundred seventy-nine thousand, four hundred sixty-four".