76660667 has 4 divisors (see below), whose sum is σ = 81170136. Its totient is φ = 72151200.

The previous prime is 76660651. The next prime is 76660699. The reversal of 76660667 is 76606667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76606667 = 61 ⋅1255847.

It is a cyclic number.

It is not a de Polignac number, because 76660667 - 2⁴ = 76660651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76660607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254709 + ... + 2254742.

It is an arithmetic number, because the mean of its divisors is an integer number (20292534).

Almost surely, 2^76660667 is an apocalyptic number.

76660667 is a deficient number, since it is larger than the sum of its proper divisors (4509469).

76660667 is a wasteful number, since it uses less digits than its factorization.

76660667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509468.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 76660667 is about 8755.6077458963. The cubic root of 76660667 is about 424.8062175390.

The spelling of 76660667 in words is "seventy-six million, six hundred sixty thousand, six hundred sixty-seven".