76668478 has 8 divisors (see below), whose sum is σ = 115599168. Its totient is φ = 38135424.

The previous prime is 76668463. The next prime is 76668479. The reversal of 76668478 is 87486667.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76668479) 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, 98926 + ... + 99697.

It is an arithmetic number, because the mean of its divisors is an integer number (14449896).

Almost surely, 2^76668478 is an apocalyptic number.

76668478 is a deficient number, since it is larger than the sum of its proper divisors (38930690).

76668478 is a wasteful number, since it uses less digits than its factorization.

76668478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198818.

The product of its digits is 2709504, while the sum is 52.

The square root of 76668478 is about 8756.0537915205. The cubic root of 76668478 is about 424.8206449666.

The spelling of 76668478 in words is "seventy-six million, six hundred sixty-eight thousand, four hundred seventy-eight".