626334013 has 4 divisors (see below), whose sum is σ = 646538368. Its totient is φ = 606129660.

The previous prime is 626333987. The next prime is 626334047. The reversal of 626334013 is 310433626.

626334013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-626334013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626334053) 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, 10102131 + ... + 10102192.

It is an arithmetic number, because the mean of its divisors is an integer number (161634592).

Almost surely, 2^626334013 is an apocalyptic number.

It is an amenable number.

626334013 is a deficient number, since it is larger than the sum of its proper divisors (20204355).

626334013 is a wasteful number, since it uses less digits than its factorization.

626334013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20204354.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 626334013 is about 25026.6660384479. Note that the first 3 decimals coincide. The cubic root of 626334013 is about 855.5958424318.

Adding to 626334013 its reverse (310433626), we get a palindrome (936767639).

The spelling of 626334013 in words is "six hundred twenty-six million, three hundred thirty-four thousand, thirteen".