626324401 has 4 divisors (see below), whose sum is σ = 629823600. Its totient is φ = 622825204.

The previous prime is 626324399. The next prime is 626324411. The reversal of 626324401 is 104423626.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104423626 = 2 ⋅52211813.

It is a cyclic number.

It is not a de Polignac number, because 626324401 - 2¹ = 626324399 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 626324401.

It is not an unprimeable number, because it can be changed into a prime (626324411) 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, 1749331 + ... + 1749688.

It is an arithmetic number, because the mean of its divisors is an integer number (157455900).

Almost surely, 2^626324401 is an apocalyptic number.

It is an amenable number.

626324401 is a deficient number, since it is larger than the sum of its proper divisors (3499199).

626324401 is a wasteful number, since it uses less digits than its factorization.

626324401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499198.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 626324401 is about 25026.4740025438. The cubic root of 626324401 is about 855.5914656248.

The spelling of 626324401 in words is "six hundred twenty-six million, three hundred twenty-four thousand, four hundred one".