64111799 has 2 divisors, whose sum is σ = 64111800. Its totient is φ = 64111798.

The previous prime is 64111783. The next prime is 64111843. The reversal of 64111799 is 99711146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64111799 - 2⁴ = 64111783 is a prime.

It is a super-2 number, since 2×64111799² = 8220645542032802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64111769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32055899 + 32055900.

It is an arithmetic number, because the mean of its divisors is an integer number (32055900).

Almost surely, 2^64111799 is an apocalyptic number.

64111799 is a deficient number, since it is larger than the sum of its proper divisors (1).

64111799 is an equidigital number, since it uses as much as digits as its factorization.

64111799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 38.

The square root of 64111799 is about 8006.9843886447. The cubic root of 64111799 is about 400.2327790918.

The spelling of 64111799 in words is "sixty-four million, one hundred eleven thousand, seven hundred ninety-nine".