623122634 has 4 divisors (see below), whose sum is σ = 934683954. Its totient is φ = 311561316.

The previous prime is 623122603. The next prime is 623122637. The reversal of 623122634 is 436221326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 561453025 + 61669609 = 23695^2 + 7853^2 .

It is a junction number, because it is equal to n+sod(n) for n = 623122597 and 623122606.

It is not an unprimeable number, because it can be changed into a prime (623122637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155780657 + ... + 155780660.

Almost surely, 2^623122634 is an apocalyptic number.

623122634 is a deficient number, since it is larger than the sum of its proper divisors (311561320).

623122634 is a wasteful number, since it uses less digits than its factorization.

623122634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311561319.

The product of its digits is 10368, while the sum is 29.

The square root of 623122634 is about 24962.4244415481. The cubic root of 623122634 is about 854.1310479038.

It can be divided in two parts, 62312 and 2634, that added together give a palindrome (64946).

The spelling of 623122634 in words is "six hundred twenty-three million, one hundred twenty-two thousand, six hundred thirty-four".