624291097 has 2 divisors, whose sum is σ = 624291098. Its totient is φ = 624291096.

The previous prime is 624291067. The next prime is 624291167. The reversal of 624291097 is 790192426.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484484121 + 139806976 = 22011^2 + 11824^2 .

It is a cyclic number.

It is not a de Polignac number, because 624291097 - 2²³ = 615902489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (624291007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312145548 + 312145549.

It is an arithmetic number, because the mean of its divisors is an integer number (312145549).

Almost surely, 2^624291097 is an apocalyptic number.

It is an amenable number.

624291097 is a deficient number, since it is larger than the sum of its proper divisors (1).

624291097 is an equidigital number, since it uses as much as digits as its factorization.

624291097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 624291097 is about 24985.8179173706. The cubic root of 624291097 is about 854.6645958235.

The spelling of 624291097 in words is "six hundred twenty-four million, two hundred ninety-one thousand, ninety-seven".