76646975 has 12 divisors (see below), whose sum is σ = 96025104. Its totient is φ = 60683520.

The previous prime is 76646923. The next prime is 76647023. The reversal of 76646975 is 57964667.

It is not a de Polignac number, because 76646975 - 2¹⁸ = 76384831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13379 + ... + 18228.

It is an arithmetic number, because the mean of its divisors is an integer number (8002092).

Almost surely, 2^76646975 is an apocalyptic number.

76646975 is a deficient number, since it is larger than the sum of its proper divisors (19378129).

76646975 is a wasteful number, since it uses less digits than its factorization.

76646975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31714 (or 31709 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 50.

The square root of 76646975 is about 8754.8258120879. The cubic root of 76646975 is about 424.7809251551.

The spelling of 76646975 in words is "seventy-six million, six hundred forty-six thousand, nine hundred seventy-five".