77694401 has 8 divisors (see below), whose sum is σ = 84422400. Its totient is φ = 71230320.

The previous prime is 77694389. The next prime is 77694427. The reversal of 77694401 is 10449677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77694401 - 2²⁶ = 10585537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77664401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65366 + ... + 66543.

It is an arithmetic number, because the mean of its divisors is an integer number (10552800).

Almost surely, 2^77694401 is an apocalyptic number.

It is an amenable number.

77694401 is a deficient number, since it is larger than the sum of its proper divisors (6727999).

77694401 is a wasteful number, since it uses less digits than its factorization.

77694401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131959.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 77694401 is about 8814.4427503955. The cubic root of 77694401 is about 426.7071377490.

The spelling of 77694401 in words is "seventy-seven million, six hundred ninety-four thousand, four hundred one".