76931039 has 4 divisors (see below), whose sum is σ = 76980120. Its totient is φ = 76881960.

The previous prime is 76931033. The next prime is 76931051. The reversal of 76931039 is 93013967.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76931039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76930993 and 76931011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76931033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22109 + ... + 25350.

It is an arithmetic number, because the mean of its divisors is an integer number (19245030).

Almost surely, 2^76931039 is an apocalyptic number.

76931039 is a deficient number, since it is larger than the sum of its proper divisors (49081).

76931039 is a wasteful number, since it uses less digits than its factorization.

76931039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49080.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 76931039 is about 8771.0340895473. The cubic root of 76931039 is about 425.3050432869.

The spelling of 76931039 in words is "seventy-six million, nine hundred thirty-one thousand, thirty-nine".