672317746 has 4 divisors (see below), whose sum is σ = 1008476622. Its totient is φ = 336158872.

The previous prime is 672317741. The next prime is 672317749. The reversal of 672317746 is 647713276.

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., 551075625 + 121242121 = 23475^2 + 11011^2 .

It is a super-2 number, since 2×672317746² = 904022303173041032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (672317741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168079435 + ... + 168079438.

Almost surely, 2^672317746 is an apocalyptic number.

672317746 is a deficient number, since it is larger than the sum of its proper divisors (336158876).

672317746 is a wasteful number, since it uses less digits than its factorization.

672317746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336158875.

The product of its digits is 296352, while the sum is 43.

The square root of 672317746 is about 25929.0907283692. The cubic root of 672317746 is about 876.0418592690.

It can be divided in two parts, 672 and 317746, that multiplied together give a palindrome (213525312).

The spelling of 672317746 in words is "six hundred seventy-two million, three hundred seventeen thousand, seven hundred forty-six".