76319986 has 4 divisors (see below), whose sum is σ = 114479982. Its totient is φ = 38159992.

The previous prime is 76319951. The next prime is 76319993. The reversal of 76319986 is 68991367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68991367 = 349 ⋅197683.

It can be written as a sum of positive squares in only one way, i.e., 62489025 + 13830961 = 7905^2 + 3719^2 .

It is a super-3 number, since 3×76319986³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19079995 + ... + 19079998.

Almost surely, 2^76319986 is an apocalyptic number.

76319986 is a deficient number, since it is larger than the sum of its proper divisors (38159996).

76319986 is a wasteful number, since it uses less digits than its factorization.

76319986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38159995.

The product of its digits is 489888, while the sum is 49.

The square root of 76319986 is about 8736.1310658666. The cubic root of 76319986 is about 424.1760016027.

The spelling of 76319986 in words is "seventy-six million, three hundred nineteen thousand, nine hundred eighty-six".