76764385 has 4 divisors (see below), whose sum is σ = 92117268. Its totient is φ = 61411504.

The previous prime is 76764383. The next prime is 76764397. The reversal of 76764385 is 58346767.

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 43678881 + 33085504 = 6609^2 + 5752^2 .

It is a cyclic number.

It is not a de Polignac number, because 76764385 - 2¹ = 76764383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76764383) 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, 7676434 + ... + 7676443.

It is an arithmetic number, because the mean of its divisors is an integer number (23029317).

Almost surely, 2^76764385 is an apocalyptic number.

It is an amenable number.

76764385 is a deficient number, since it is larger than the sum of its proper divisors (15352883).

76764385 is a wasteful number, since it uses less digits than its factorization.

76764385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15352882.

The product of its digits is 846720, while the sum is 46.

The square root of 76764385 is about 8761.5286908165. The cubic root of 76764385 is about 424.9977116370.

The spelling of 76764385 in words is "seventy-six million, seven hundred sixty-four thousand, three hundred eighty-five".