624492101 has 2 divisors, whose sum is σ = 624492102. Its totient is φ = 624492100.

The previous prime is 624492097. The next prime is 624492131. The reversal of 624492101 is 101294426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452200225 + 172291876 = 21265^2 + 13126^2 .

It is a cyclic number.

It is not a de Polignac number, because 624492101 - 2² = 624492097 is a prime.

It is a super-2 number, since 2×624492101² = 779980768422788402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624492131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312246050 + 312246051.

It is an arithmetic number, because the mean of its divisors is an integer number (312246051).

Almost surely, 2^624492101 is an apocalyptic number.

It is an amenable number.

624492101 is a deficient number, since it is larger than the sum of its proper divisors (1).

624492101 is an equidigital number, since it uses as much as digits as its factorization.

624492101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 624492101 is about 24989.8399554699. The cubic root of 624492101 is about 854.7563118885.

The spelling of 624492101 in words is "six hundred twenty-four million, four hundred ninety-two thousand, one hundred one".