76378685 has 4 divisors (see below), whose sum is σ = 91654428. Its totient is φ = 61102944.

The previous prime is 76378667. The next prime is 76378711. The reversal of 76378685 is 58687367.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33200644 + 43178041 = 5762^2 + 6571^2 .

It is a cyclic number.

It is not a de Polignac number, because 76378685 - 2⁸ = 76378429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7637864 + ... + 7637873.

It is an arithmetic number, because the mean of its divisors is an integer number (22913607).

Almost surely, 2^76378685 is an apocalyptic number.

It is an amenable number.

76378685 is a deficient number, since it is larger than the sum of its proper divisors (15275743).

76378685 is a wasteful number, since it uses less digits than its factorization.

76378685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15275742.

The product of its digits is 1693440, while the sum is 50.

The square root of 76378685 is about 8739.4899736770. The cubic root of 76378685 is about 424.2847207286.

The spelling of 76378685 in words is "seventy-six million, three hundred seventy-eight thousand, six hundred eighty-five".