64622023 has 2 divisors, whose sum is σ = 64622024. Its totient is φ = 64622022.

The previous prime is 64621967. The next prime is 64622053. The reversal of 64622023 is 32022646.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64622023 - 2⁹ = 64621511 is a prime.

It is a super-2 number, since 2×64622023² = 8352011713225058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64622053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32311011 + 32311012.

It is an arithmetic number, because the mean of its divisors is an integer number (32311012).

Almost surely, 2^64622023 is an apocalyptic number.

64622023 is a deficient number, since it is larger than the sum of its proper divisors (1).

64622023 is an equidigital number, since it uses as much as digits as its factorization.

64622023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 64622023 is about 8038.7824326822. The cubic root of 64622023 is about 401.2917055022.

Adding to 64622023 its reverse (32022646), we get a palindrome (96644669).

The spelling of 64622023 in words is "sixty-four million, six hundred twenty-two thousand, twenty-three".