624431201 has 2 divisors, whose sum is σ = 624431202. Its totient is φ = 624431200.

The previous prime is 624431191. The next prime is 624431239. The reversal of 624431201 is 102134426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465696400 + 158734801 = 21580^2 + 12599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-624431201 is a prime.

It is not a weakly prime, because it can be changed into another prime (624431261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312215600 + 312215601.

It is an arithmetic number, because the mean of its divisors is an integer number (312215601).

Almost surely, 2^624431201 is an apocalyptic number.

It is an amenable number.

624431201 is a deficient number, since it is larger than the sum of its proper divisors (1).

624431201 is an equidigital number, since it uses as much as digits as its factorization.

624431201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 624431201 is about 24988.6214305632. The cubic root of 624431201 is about 854.7285259210.

Adding to 624431201 its reverse (102134426), we get a palindrome (726565627).

The spelling of 624431201 in words is "six hundred twenty-four million, four hundred thirty-one thousand, two hundred one".