76666379 has 8 divisors (see below), whose sum is σ = 83795328. Its totient is φ = 69828480.

The previous prime is 76666367. The next prime is 76666391. The reversal of 76666379 is 97366667.

It is an interprime number because it is at equal distance from previous prime (76666367) and next prime (76666391).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76666379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76666339) 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, 72212 + ... + 73265.

It is an arithmetic number, because the mean of its divisors is an integer number (10474416).

Almost surely, 2^76666379 is an apocalyptic number.

76666379 is a deficient number, since it is larger than the sum of its proper divisors (7128949).

76666379 is a wasteful number, since it uses less digits than its factorization.

76666379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145525.

The product of its digits is 1714608, while the sum is 50.

The square root of 76666379 is about 8755.9339307695. The cubic root of 76666379 is about 424.8167680727.

The spelling of 76666379 in words is "seventy-six million, six hundred sixty-six thousand, three hundred seventy-nine".