720984674 has 4 divisors (see below), whose sum is σ = 1081477014. Its totient is φ = 360492336.

The previous prime is 720984629. The next prime is 720984709. The reversal of 720984674 is 476489027.

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., 719044225 + 1940449 = 26815^2 + 1393^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180246167 + ... + 180246170.

Almost surely, 2^720984674 is an apocalyptic number.

720984674 is a deficient number, since it is larger than the sum of its proper divisors (360492340).

720984674 is a wasteful number, since it uses less digits than its factorization.

720984674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360492339.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 720984674 is about 26851.1577776453. The cubic root of 720984674 is about 896.6893486306.

The spelling of 720984674 in words is "seven hundred twenty million, nine hundred eighty-four thousand, six hundred seventy-four".