76688386 has 8 divisors (see below), whose sum is σ = 115262784. Its totient is φ = 38267460.

The previous prime is 76688347. The next prime is 76688387. The reversal of 76688386 is 68388667.

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

It is a super-2 number, since 2×76688386² = 11762217094569992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76688387) 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, 37110 + ... + 39121.

It is an arithmetic number, because the mean of its divisors is an integer number (14407848).

Almost surely, 2^76688386 is an apocalyptic number.

76688386 is a deficient number, since it is larger than the sum of its proper divisors (38574398).

76688386 is a wasteful number, since it uses less digits than its factorization.

76688386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76736.

The product of its digits is 2322432, while the sum is 52.

The square root of 76688386 is about 8757.1905312149. The cubic root of 76688386 is about 424.8574119131.

The spelling of 76688386 in words is "seventy-six million, six hundred eighty-eight thousand, three hundred eighty-six".