64884077 has 2 divisors, whose sum is σ = 64884078. Its totient is φ = 64884076.

The previous prime is 64884067. The next prime is 64884097. The reversal of 64884077 is 77048846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64866916 + 17161 = 8054^2 + 131^2 .

It is a cyclic number.

It is not a de Polignac number, because 64884077 - 2⁶ = 64884013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64884067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32442038 + 32442039.

It is an arithmetic number, because the mean of its divisors is an integer number (32442039).

Almost surely, 2^64884077 is an apocalyptic number.

It is an amenable number.

64884077 is a deficient number, since it is larger than the sum of its proper divisors (1).

64884077 is an equidigital number, since it uses as much as digits as its factorization.

64884077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 64884077 is about 8055.0653007906. The cubic root of 64884077 is about 401.8334107566.

The spelling of 64884077 in words is "sixty-four million, eight hundred eighty-four thousand, seventy-seven".