64074919 has 2 divisors, whose sum is σ = 64074920. Its totient is φ = 64074918.

The previous prime is 64074863. The next prime is 64074943. The reversal of 64074919 is 91947046.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64074919 - 2⁹ = 64074407 is a prime.

It is a super-2 number, since 2×64074919² = 8211190489713122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64074979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32037459 + 32037460.

It is an arithmetic number, because the mean of its divisors is an integer number (32037460).

Almost surely, 2^64074919 is an apocalyptic number.

64074919 is a deficient number, since it is larger than the sum of its proper divisors (1).

64074919 is an equidigital number, since it uses as much as digits as its factorization.

64074919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 64074919 is about 8004.6810679752. The cubic root of 64074919 is about 400.1560203862.

The spelling of 64074919 in words is "sixty-four million, seventy-four thousand, nine hundred nineteen".