64504679 has 2 divisors, whose sum is σ = 64504680. Its totient is φ = 64504678.

The previous prime is 64504637. The next prime is 64504703. The reversal of 64504679 is 97640546.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64504679 is a prime.

It is a super-2 number, since 2×64504679² = 8321707225786082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64504379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32252339 + 32252340.

It is an arithmetic number, because the mean of its divisors is an integer number (32252340).

Almost surely, 2^64504679 is an apocalyptic number.

64504679 is a deficient number, since it is larger than the sum of its proper divisors (1).

64504679 is an equidigital number, since it uses as much as digits as its factorization.

64504679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 64504679 is about 8031.4804986378. The cubic root of 64504679 is about 401.0486629459.

The spelling of 64504679 in words is "sixty-four million, five hundred four thousand, six hundred seventy-nine".