880646644 has 6 divisors (see below), whose sum is σ = 1541131634. Its totient is φ = 440323320.

The previous prime is 880646623. The next prime is 880646671. The reversal of 880646644 is 446646088.

It can be written as a sum of positive squares in only one way, i.e., 654745744 + 225900900 = 25588^2 + 15030^2 .

It is a junction number, because it is equal to n+sod(n) for n = 880646594 and 880646603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110080827 + ... + 110080834.

Almost surely, 2^880646644 is an apocalyptic number.

It is an amenable number.

880646644 is a deficient number, since it is larger than the sum of its proper divisors (660484990).

880646644 is a wasteful number, since it uses less digits than its factorization.

880646644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220161665 (or 220161663 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The square root of 880646644 is about 29675.6911292728. The cubic root of 880646644 is about 958.5186368899.

The spelling of 880646644 in words is "eight hundred eighty million, six hundred forty-six thousand, six hundred forty-four".