672246994 has 4 divisors (see below), whose sum is σ = 1008370494. Its totient is φ = 336123496.

The previous prime is 672246983. The next prime is 672247007. The reversal of 672246994 is 499642276.

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., 579027969 + 93219025 = 24063^2 + 9655^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168061747 + ... + 168061750.

Almost surely, 2^672246994 is an apocalyptic number.

672246994 is a deficient number, since it is larger than the sum of its proper divisors (336123500).

672246994 is a wasteful number, since it uses less digits than its factorization.

672246994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336123499.

The product of its digits is 1306368, while the sum is 49.

The square root of 672246994 is about 25927.7263561617. The cubic root of 672246994 is about 876.0111278237.

The spelling of 672246994 in words is "six hundred seventy-two million, two hundred forty-six thousand, nine hundred ninety-four".