77311701 has 6 divisors (see below), whose sum is σ = 111672470. Its totient is φ = 51541128.

The previous prime is 77311681. The next prime is 77311739. The reversal of 77311701 is 10711377.

It can be written as a sum of positive squares in only one way, i.e., 63584676 + 13727025 = 7974^2 + 3705^2 .

It is not a de Polignac number, because 77311701 - 2⁷ = 77311573 is a prime.

It is a super-2 number, since 2×77311701² = 11954198223026802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77311001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4295086 + ... + 4295103.

Almost surely, 2^77311701 is an apocalyptic number.

It is an amenable number.

77311701 is a deficient number, since it is larger than the sum of its proper divisors (34360769).

77311701 is a wasteful number, since it uses less digits than its factorization.

77311701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8590195 (or 8590192 counting only the distinct ones).

The product of its (nonzero) digits is 1029, while the sum is 27.

The square root of 77311701 is about 8792.7072622714. The cubic root of 77311701 is about 426.0053725435.

The spelling of 77311701 in words is "seventy-seven million, three hundred eleven thousand, seven hundred one".