652623899 has 2 divisors, whose sum is σ = 652623900. Its totient is φ = 652623898.

The previous prime is 652623893. The next prime is 652623947. The reversal of 652623899 is 998326256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 652623899 - 2²⁸ = 384188443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (652623893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326311949 + 326311950.

It is an arithmetic number, because the mean of its divisors is an integer number (326311950).

Almost surely, 2^652623899 is an apocalyptic number.

652623899 is a deficient number, since it is larger than the sum of its proper divisors (1).

652623899 is an equidigital number, since it uses as much as digits as its factorization.

652623899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 50.

The square root of 652623899 is about 25546.5046337067. The cubic root of 652623899 is about 867.4031424388.

The spelling of 652623899 in words is "six hundred fifty-two million, six hundred twenty-three thousand, eight hundred ninety-nine".