76686938 has 8 divisors (see below), whose sum is σ = 116606388. Its totient is φ = 37818144.

The previous prime is 76686917. The next prime is 76686971. The reversal of 76686938 is 83968667.

It can be written as a sum of positive squares in 2 ways, for example, as 68178049 + 8508889 = 8257^2 + 2917^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 76686938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262481 + ... + 262772.

Almost surely, 2^76686938 is an apocalyptic number.

76686938 is a deficient number, since it is larger than the sum of its proper divisors (39919450).

76686938 is a wasteful number, since it uses less digits than its factorization.

76686938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525328.

The product of its digits is 2612736, while the sum is 53.

The square root of 76686938 is about 8757.1078559077. The cubic root of 76686938 is about 424.8547378993.

The spelling of 76686938 in words is "seventy-six million, six hundred eighty-six thousand, nine hundred thirty-eight".