77055413 has 2 divisors, whose sum is σ = 77055414. Its totient is φ = 77055412.

The previous prime is 77055397. The next prime is 77055421. The reversal of 77055413 is 31455077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66699889 + 10355524 = 8167^2 + 3218^2 .

It is a cyclic number.

It is not a de Polignac number, because 77055413 - 2⁴ = 77055397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77055413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77055493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38527706 + 38527707.

It is an arithmetic number, because the mean of its divisors is an integer number (38527707).

Almost surely, 2^77055413 is an apocalyptic number.

It is an amenable number.

77055413 is a deficient number, since it is larger than the sum of its proper divisors (1).

77055413 is an equidigital number, since it uses as much as digits as its factorization.

77055413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 77055413 is about 8778.1212682441. The cubic root of 77055413 is about 425.5341160152.

The spelling of 77055413 in words is "seventy-seven million, fifty-five thousand, four hundred thirteen".