672601615 has 16 divisors (see below), whose sum is σ = 970974720. Its totient is φ = 436937760.

The previous prime is 672601609. The next prime is 672601661. The reversal of 672601615 is 516106276.

It is a happy number.

It is not a de Polignac number, because 672601615 - 2⁹ = 672601103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505051 + ... + 506380.

It is an arithmetic number, because the mean of its divisors is an integer number (60685920).

Almost surely, 2^672601615 is an apocalyptic number.

672601615 is a deficient number, since it is larger than the sum of its proper divisors (298373105).

672601615 is a wasteful number, since it uses less digits than its factorization.

672601615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011462.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 672601615 is about 25934.5640989009. The cubic root of 672601615 is about 876.1651373551.

The spelling of 672601615 in words is "six hundred seventy-two million, six hundred one thousand, six hundred fifteen".