76668707 has 4 divisors (see below), whose sum is σ = 76732320. Its totient is φ = 76605096.

The previous prime is 76668661. The next prime is 76668727. The reversal of 76668707 is 70786667.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 76668707 - 2⁸ = 76668451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76668727) 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, 29963 + ... + 32420.

It is an arithmetic number, because the mean of its divisors is an integer number (19183080).

Almost surely, 2^76668707 is an apocalyptic number.

76668707 is a deficient number, since it is larger than the sum of its proper divisors (63613).

76668707 is a wasteful number, since it uses less digits than its factorization.

76668707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63612.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 76668707 is about 8756.0668681777. The cubic root of 76668707 is about 424.8210679298.

The spelling of 76668707 in words is "seventy-six million, six hundred sixty-eight thousand, seven hundred seven".