76930989 has 4 divisors (see below), whose sum is σ = 102574656. Its totient is φ = 51287324.

The previous prime is 76930979. The next prime is 76931011. The reversal of 76930989 is 98903967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98903967 = 3 ⋅32967989.

It is a cyclic number.

It is not a de Polignac number, because 76930989 - 2¹² = 76926893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76930949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12821829 + ... + 12821834.

It is an arithmetic number, because the mean of its divisors is an integer number (25643664).

Almost surely, 2^76930989 is an apocalyptic number.

It is an amenable number.

76930989 is a deficient number, since it is larger than the sum of its proper divisors (25643667).

76930989 is a wasteful number, since it uses less digits than its factorization.

76930989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25643666.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 76930989 is about 8771.0312392557. The cubic root of 76930989 is about 425.3049511470.

The spelling of 76930989 in words is "seventy-six million, nine hundred thirty thousand, nine hundred eighty-nine".