672170383 has 2 divisors, whose sum is σ = 672170384. Its totient is φ = 672170382.

The previous prime is 672170363. The next prime is 672170413. The reversal of 672170383 is 383071276.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672170383 is a prime.

It is equal to p_34885135 and since 672170383 and 34885135 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672170363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336085191 + 336085192.

It is an arithmetic number, because the mean of its divisors is an integer number (336085192).

Almost surely, 2^672170383 is an apocalyptic number.

672170383 is a deficient number, since it is larger than the sum of its proper divisors (1).

672170383 is an equidigital number, since it uses as much as digits as its factorization.

672170383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 672170383 is about 25926.2489188081. The cubic root of 672170383 is about 875.9778490642.

The spelling of 672170383 in words is "six hundred seventy-two million, one hundred seventy thousand, three hundred eighty-three".