77696067 has 4 divisors (see below), whose sum is σ = 103594760. Its totient is φ = 51797376.

The previous prime is 77696057. The next prime is 77696071. The reversal of 77696067 is 76069677.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76069677 = 3 ⋅25356559.

It is not a de Polignac number, because 77696067 - 2⁸ = 77695811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77696057) 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, 12949342 + ... + 12949347.

It is an arithmetic number, because the mean of its divisors is an integer number (25898690).

Almost surely, 2^77696067 is an apocalyptic number.

77696067 is a deficient number, since it is larger than the sum of its proper divisors (25898693).

77696067 is a wasteful number, since it uses less digits than its factorization.

77696067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25898692.

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 77696067 is about 8814.5372538778. The cubic root of 77696067 is about 426.7101876857.

The spelling of 77696067 in words is "seventy-seven million, six hundred ninety-six thousand, sixty-seven".