77266713 has 4 divisors (see below), whose sum is σ = 103022288. Its totient is φ = 51511140.

The previous prime is 77266703. The next prime is 77266757. The reversal of 77266713 is 31766277.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31766277 = 3 ⋅10588759.

It is not a de Polignac number, because 77266713 - 2⁴ = 77266697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77266703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12877783 + ... + 12877788.

It is an arithmetic number, because the mean of its divisors is an integer number (25755572).

Almost surely, 2^77266713 is an apocalyptic number.

It is an amenable number.

77266713 is a deficient number, since it is larger than the sum of its proper divisors (25755575).

77266713 is a wasteful number, since it uses less digits than its factorization.

77266713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25755574.

The product of its digits is 74088, while the sum is 39.

The square root of 77266713 is about 8790.1486335556. The cubic root of 77266713 is about 425.9227250784.

The spelling of 77266713 in words is "seventy-seven million, two hundred sixty-six thousand, seven hundred thirteen".