672567591 has 8 divisors (see below), whose sum is σ = 897094000. Its totient is φ = 448209792.

The previous prime is 672567589. The next prime is 672567607. The reversal of 672567591 is 195765276.

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

It is not a de Polignac number, because 672567591 - 2¹ = 672567589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 672567591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672567521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32530 + ... + 49023.

It is an arithmetic number, because the mean of its divisors is an integer number (112136750).

Almost surely, 2^672567591 is an apocalyptic number.

672567591 is a deficient number, since it is larger than the sum of its proper divisors (224526409).

672567591 is a wasteful number, since it uses less digits than its factorization.

672567591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84305.

The product of its digits is 793800, while the sum is 48.

The square root of 672567591 is about 25933.9081320190. The cubic root of 672567591 is about 876.1503633073.

It can be divided in two parts, 67256 and 7591, that added together give a palindrome (74847).

The spelling of 672567591 in words is "six hundred seventy-two million, five hundred sixty-seven thousand, five hundred ninety-one".