870779002 has 4 divisors (see below), whose sum is σ = 1306168506. Its totient is φ = 435389500.

The previous prime is 870778999. The next prime is 870779047. The reversal of 870779002 is 200977078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 626450841 + 244328161 = 25029^2 + 15631^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217694749 + ... + 217694752.

Almost surely, 2^870779002 is an apocalyptic number.

870779002 is a deficient number, since it is larger than the sum of its proper divisors (435389504).

870779002 is a wasteful number, since it uses less digits than its factorization.

870779002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435389503.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 870779002 is about 29508.9647734379. The cubic root of 870779002 is about 954.9251156984.

The spelling of 870779002 in words is "eight hundred seventy million, seven hundred seventy-nine thousand, two".