623622051 has 16 divisors (see below), whose sum is σ = 994953120. Its totient is φ = 383767200.

The previous prime is 623622037. The next prime is 623622059. The reversal of 623622051 is 150226326.

It is not a de Polignac number, because 623622051 - 2⁵ = 623622019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (623622059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 888000 + ... + 888701.

It is an arithmetic number, because the mean of its divisors is an integer number (62184570).

Almost surely, 2^623622051 is an apocalyptic number.

623622051 is a deficient number, since it is larger than the sum of its proper divisors (371331069).

623622051 is a wasteful number, since it uses less digits than its factorization.

623622051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776723 (or 1776717 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 623622051 is about 24972.4258132845. The cubic root of 623622051 is about 854.3591750985.

Adding to 623622051 its reverse (150226326), we get a palindrome (773848377).

The spelling of 623622051 in words is "six hundred twenty-three million, six hundred twenty-two thousand, fifty-one".