623274437 has 4 divisors (see below), whose sum is σ = 643380096. Its totient is φ = 603168780.

The previous prime is 623274413. The next prime is 623274469. The reversal of 623274437 is 734472326.

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 623274437 - 2¹² = 623270341 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 623274437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623274137) 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, 10052783 + ... + 10052844.

It is an arithmetic number, because the mean of its divisors is an integer number (160845024).

Almost surely, 2^623274437 is an apocalyptic number.

It is an amenable number.

623274437 is a deficient number, since it is larger than the sum of its proper divisors (20105659).

623274437 is a wasteful number, since it uses less digits than its factorization.

623274437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20105658.

The product of its digits is 169344, while the sum is 38.

The square root of 623274437 is about 24965.4648865187. The cubic root of 623274437 is about 854.2004024315.

The spelling of 623274437 in words is "six hundred twenty-three million, two hundred seventy-four thousand, four hundred thirty-seven".