64115407 has 2 divisors, whose sum is σ = 64115408. Its totient is φ = 64115406.

The previous prime is 64115393. The next prime is 64115411. The reversal of 64115407 is 70451146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64115407 is a prime.

It is a super-2 number, since 2×64115407² = 8221570829551298, which contains 22 as substring.

It is equal to p_3791512 and since 64115407 and 3791512 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64115417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32057703 + 32057704.

It is an arithmetic number, because the mean of its divisors is an integer number (32057704).

Almost surely, 2^64115407 is an apocalyptic number.

64115407 is a deficient number, since it is larger than the sum of its proper divisors (1).

64115407 is an equidigital number, since it uses as much as digits as its factorization.

64115407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 64115407 is about 8007.2096887742. The cubic root of 64115407 is about 400.2402868766.

The spelling of 64115407 in words is "sixty-four million, one hundred fifteen thousand, four hundred seven".