64764827 has 2 divisors, whose sum is σ = 64764828. Its totient is φ = 64764826.

The previous prime is 64764811. The next prime is 64764839. The reversal of 64764827 is 72846746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64764827 - 2⁴ = 64764811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64760827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32382413 + 32382414.

It is an arithmetic number, because the mean of its divisors is an integer number (32382414).

Almost surely, 2^64764827 is an apocalyptic number.

64764827 is a deficient number, since it is larger than the sum of its proper divisors (1).

64764827 is an equidigital number, since it uses as much as digits as its factorization.

64764827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 44.

The square root of 64764827 is about 8047.6597219316. The cubic root of 64764827 is about 401.5870841646.

The spelling of 64764827 in words is "sixty-four million, seven hundred sixty-four thousand, eight hundred twenty-seven".