672394755 has 16 divisors (see below), whose sum is σ = 1080935424. Its totient is φ = 356909280.

The previous prime is 672394721. The next prime is 672394759. The reversal of 672394755 is 557493276.

It is not a de Polignac number, because 672394755 - 2⁶ = 672394691 is a prime.

It is a super-2 number, since 2×672394755² = 904229413103020050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (672394759) by changing a digit.

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, 103059 + ... + 109388.

It is an arithmetic number, because the mean of its divisors is an integer number (67558464).

Almost surely, 2^672394755 is an apocalyptic number.

672394755 is a deficient number, since it is larger than the sum of its proper divisors (408540669).

672394755 is a wasteful number, since it uses less digits than its factorization.

672394755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212666.

The product of its digits is 1587600, while the sum is 48.

The square root of 672394755 is about 25930.5756781449. The cubic root of 672394755 is about 876.0753060196.

The spelling of 672394755 in words is "six hundred seventy-two million, three hundred ninety-four thousand, seven hundred fifty-five".