672424705 has 8 divisors (see below), whose sum is σ = 808944552. Its totient is φ = 536583168.

The previous prime is 672424699. The next prime is 672424747. The reversal of 672424705 is 507424276.

It can be written as a sum of positive squares in 4 ways, for example, as 202749121 + 469675584 = 14239^2 + 21672^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672424705 - 2²⁵ = 638870273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167392 + ... + 171361.

It is an arithmetic number, because the mean of its divisors is an integer number (101118069).

Almost surely, 2^672424705 is an apocalyptic number.

It is an amenable number.

672424705 is a deficient number, since it is larger than the sum of its proper divisors (136519847).

672424705 is a wasteful number, since it uses less digits than its factorization.

672424705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339155.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 672424705 is about 25931.1531752832. The cubic root of 672424705 is about 876.0883132923.

The spelling of 672424705 in words is "six hundred seventy-two million, four hundred twenty-four thousand, seven hundred five".