77064653 has 2 divisors, whose sum is σ = 77064654. Its totient is φ = 77064652.

The previous prime is 77064623. The next prime is 77064671. The reversal of 77064653 is 35646077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70526404 + 6538249 = 8398^2 + 2557^2 .

It is a cyclic number.

It is not a de Polignac number, because 77064653 - 2¹⁴ = 77048269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77064623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38532326 + 38532327.

It is an arithmetic number, because the mean of its divisors is an integer number (38532327).

Almost surely, 2^77064653 is an apocalyptic number.

It is an amenable number.

77064653 is a deficient number, since it is larger than the sum of its proper divisors (1).

77064653 is an equidigital number, since it uses as much as digits as its factorization.

77064653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 77064653 is about 8778.6475609857. The cubic root of 77064653 is about 425.5511244594.

The spelling of 77064653 in words is "seventy-seven million, sixty-four thousand, six hundred fifty-three".