77118697 has 4 divisors (see below), whose sum is σ = 77352016. Its totient is φ = 76885380.

The previous prime is 77118673. The next prime is 77118719. The reversal of 77118697 is 79681177.

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.

It is a cyclic number.

It is not a de Polignac number, because 77118697 - 2¹⁵ = 77085929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77118617) 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, 116163 + ... + 116824.

It is an arithmetic number, because the mean of its divisors is an integer number (19338004).

Almost surely, 2^77118697 is an apocalyptic number.

It is an amenable number.

77118697 is a deficient number, since it is larger than the sum of its proper divisors (233319).

77118697 is a wasteful number, since it uses less digits than its factorization.

77118697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233318.

The product of its digits is 148176, while the sum is 46.

The square root of 77118697 is about 8781.7251721971. The cubic root of 77118697 is about 425.6505782298.

It can be divided in two parts, 77118 and 697, that added together give a triangular number (77815 = T₃₉₄).

The spelling of 77118697 in words is "seventy-seven million, one hundred eighteen thousand, six hundred ninety-seven".