672515797 has 4 divisors (see below), whose sum is σ = 676969696. Its totient is φ = 668061900.

The previous prime is 672515749. The next prime is 672515803. The reversal of 672515797 is 797515276.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 672515797 - 2¹¹ = 672513749 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 672515797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672515707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2226723 + ... + 2227024.

It is an arithmetic number, because the mean of its divisors is an integer number (169242424).

Almost surely, 2^672515797 is an apocalyptic number.

It is an amenable number.

672515797 is a deficient number, since it is larger than the sum of its proper divisors (4453899).

672515797 is a wasteful number, since it uses less digits than its factorization.

672515797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453898.

The product of its digits is 926100, while the sum is 49.

The square root of 672515797 is about 25932.9095359545. The cubic root of 672515797 is about 876.1278721369.

It can be divided in two parts, 6725 and 15797, that added together give a palindrome (22522).

The spelling of 672515797 in words is "six hundred seventy-two million, five hundred fifteen thousand, seven hundred ninety-seven".