76391086 has 4 divisors (see below), whose sum is σ = 114586632. Its totient is φ = 38195542.

The previous prime is 76391071. The next prime is 76391087. The reversal of 76391086 is 68019367.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76391087) by changing a digit.

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 as a sum of consecutive naturals, namely, 19097770 + ... + 19097773.

It is an arithmetic number, because the mean of its divisors is an integer number (28646658).

Almost surely, 2^76391086 is an apocalyptic number.

76391086 is a deficient number, since it is larger than the sum of its proper divisors (38195546).

76391086 is a wasteful number, since it uses less digits than its factorization.

76391086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38195545.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 76391086 is about 8740.1994256424. The cubic root of 76391086 is about 424.3076820652.

The spelling of 76391086 in words is "seventy-six million, three hundred ninety-one thousand, eighty-six".