77000653 has 2 divisors, whose sum is σ = 77000654. Its totient is φ = 77000652.

The previous prime is 77000647. The next prime is 77000669. The reversal of 77000653 is 35600077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76073284 + 927369 = 8722^2 + 963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77000653 is a prime.

It is equal to p_4504582 and since 77000653 and 4504582 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77000953) 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, 38500326 + 38500327.

It is an arithmetic number, because the mean of its divisors is an integer number (38500327).

Almost surely, 2^77000653 is an apocalyptic number.

It is an amenable number.

77000653 is a deficient number, since it is larger than the sum of its proper divisors (1).

77000653 is an equidigital number, since it uses as much as digits as its factorization.

77000653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 77000653 is about 8775.0015954415. The cubic root of 77000653 is about 425.4332891365.

Subtracting from 77000653 its sum of digits (28), we obtain a square (77000625 = 8775²).

The spelling of 77000653 in words is "seventy-seven million, six hundred fifty-three", and thus it is an aban number.