64222799 has 2 divisors, whose sum is σ = 64222800. Its totient is φ = 64222798.

The previous prime is 64222789. The next prime is 64222811. The reversal of 64222799 is 99722246.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64222799 is a prime.

It is a super-2 number, since 2×64222799² = 8249135822788802, 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 (64222709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32111399 + 32111400.

It is an arithmetic number, because the mean of its divisors is an integer number (32111400).

Almost surely, 2^64222799 is an apocalyptic number.

64222799 is a deficient number, since it is larger than the sum of its proper divisors (1).

64222799 is an equidigital number, since it uses as much as digits as its factorization.

64222799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 64222799 is about 8013.9128395560. The cubic root of 64222799 is about 400.4636270007.

The spelling of 64222799 in words is "sixty-four million, two hundred twenty-two thousand, seven hundred ninety-nine".