77465513 has 2 divisors, whose sum is σ = 77465514. Its totient is φ = 77465512.

The previous prime is 77465471. The next prime is 77465551. The reversal of 77465513 is 31556477.

It is an a-pointer prime, because the next prime (77465551) can be obtained adding 77465513 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71453209 + 6012304 = 8453^2 + 2452^2 .

It is an emirp because it is prime and its reverse (31556477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77465513 - 2⁸ = 77465257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (77465573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38732756 + 38732757.

It is an arithmetic number, because the mean of its divisors is an integer number (38732757).

Almost surely, 2^77465513 is an apocalyptic number.

It is an amenable number.

77465513 is a deficient number, since it is larger than the sum of its proper divisors (1).

77465513 is an equidigital number, since it uses as much as digits as its factorization.

77465513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 38.

The square root of 77465513 is about 8801.4494828977. The cubic root of 77465513 is about 426.2876986406.

The spelling of 77465513 in words is "seventy-seven million, four hundred sixty-five thousand, five hundred thirteen".