64624799 has 2 divisors, whose sum is σ = 64624800. Its totient is φ = 64624798.

The previous prime is 64624793. The next prime is 64624823. The reversal of 64624799 is 99742646.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64624799 - 2¹⁶ = 64559263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64624793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32312399 + 32312400.

It is an arithmetic number, because the mean of its divisors is an integer number (32312400).

Almost surely, 2^64624799 is an apocalyptic number.

64624799 is a deficient number, since it is larger than the sum of its proper divisors (1).

64624799 is an equidigital number, since it uses as much as digits as its factorization.

64624799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 64624799 is about 8038.9550937917. The cubic root of 64624799 is about 401.2974515816.

The spelling of 64624799 in words is "sixty-four million, six hundred twenty-four thousand, seven hundred ninety-nine".