64774079 has 2 divisors, whose sum is σ = 64774080. Its totient is φ = 64774078.

The previous prime is 64774069. The next prime is 64774103. The reversal of 64774079 is 97047746.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64774079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64774069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32387039 + 32387040.

It is an arithmetic number, because the mean of its divisors is an integer number (32387040).

Almost surely, 2^64774079 is an apocalyptic number.

64774079 is a deficient number, since it is larger than the sum of its proper divisors (1).

64774079 is an equidigital number, since it uses as much as digits as its factorization.

64774079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 64774079 is about 8048.2345269009. The cubic root of 64774079 is about 401.6062062044.

The spelling of 64774079 in words is "sixty-four million, seven hundred seventy-four thousand, seventy-nine".