77466253 has 2 divisors, whose sum is σ = 77466254. Its totient is φ = 77466252.

The previous prime is 77466251. The next prime is 77466269. The reversal of 77466253 is 35266477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69189124 + 8277129 = 8318^2 + 2877^2 .

It is a cyclic number.

It is not a de Polignac number, because 77466253 - 2¹ = 77466251 is a prime.

Together with 77466251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77466251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38733126 + 38733127.

It is an arithmetic number, because the mean of its divisors is an integer number (38733127).

Almost surely, 2^77466253 is an apocalyptic number.

It is an amenable number.

77466253 is a deficient number, since it is larger than the sum of its proper divisors (1).

77466253 is an equidigital number, since it uses as much as digits as its factorization.

77466253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 40.

The square root of 77466253 is about 8801.4915213275. The cubic root of 77466253 is about 426.2890560269.

The spelling of 77466253 in words is "seventy-seven million, four hundred sixty-six thousand, two hundred fifty-three".