76628687 has 2 divisors, whose sum is σ = 76628688. Its totient is φ = 76628686.

The previous prime is 76628681. The next prime is 76628689. The reversal of 76628687 is 78682667.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76628687 - 2²⁴ = 59851471 is a prime.

Together with 76628689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76628681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38314343 + 38314344.

It is an arithmetic number, because the mean of its divisors is an integer number (38314344).

Almost surely, 2^76628687 is an apocalyptic number.

76628687 is a deficient number, since it is larger than the sum of its proper divisors (1).

76628687 is an equidigital number, since it uses as much as digits as its factorization.

76628687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The square root of 76628687 is about 8753.7812972452. The cubic root of 76628687 is about 424.7471381662.

The spelling of 76628687 in words is "seventy-six million, six hundred twenty-eight thousand, six hundred eighty-seven".