624094381 has 2 divisors, whose sum is σ = 624094382. Its totient is φ = 624094380.

The previous prime is 624094363. The next prime is 624094399. The reversal of 624094381 is 183490426.

It is a balanced prime because it is at equal distance from previous prime (624094363) and next prime (624094399).

It can be written as a sum of positive squares in only one way, i.e., 382789225 + 241305156 = 19565^2 + 15534^2 .

It is a cyclic number.

It is not a de Polignac number, because 624094381 - 2²⁵ = 590539949 is a prime.

It is a super-2 number, since 2×624094381² = 778987592791546322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 624094381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624034381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312047190 + 312047191.

It is an arithmetic number, because the mean of its divisors is an integer number (312047191).

Almost surely, 2^624094381 is an apocalyptic number.

It is an amenable number.

624094381 is a deficient number, since it is larger than the sum of its proper divisors (1).

624094381 is an equidigital number, since it uses as much as digits as its factorization.

624094381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 624094381 is about 24981.8810540760. The cubic root of 624094381 is about 854.5748172658.

The spelling of 624094381 in words is "six hundred twenty-four million, ninety-four thousand, three hundred eighty-one".