672791505 has 8 divisors (see below), whose sum is σ = 1076466432. Its totient is φ = 358822128.

The previous prime is 672791479. The next prime is 672791521. The reversal of 672791505 is 505197276.

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

It is not a de Polignac number, because 672791505 - 2¹⁷ = 672660433 is a prime.

It is a Curzon 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, 22426369 + ... + 22426398.

It is an arithmetic number, because the mean of its divisors is an integer number (134558304).

Almost surely, 2^672791505 is an apocalyptic number.

It is an amenable number.

672791505 is a deficient number, since it is larger than the sum of its proper divisors (403674927).

672791505 is a wasteful number, since it uses less digits than its factorization.

672791505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44852775.

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 672791505 is about 25938.2247850542. The cubic root of 672791505 is about 876.2475830603.

The spelling of 672791505 in words is "six hundred seventy-two million, seven hundred ninety-one thousand, five hundred five".