76319989 has 4 divisors (see below), whose sum is σ = 76344640. Its totient is φ = 76295340.

The previous prime is 76319951. The next prime is 76319993. The reversal of 76319989 is 98991367.

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: 98991367 = 163 ⋅607309.

It is a cyclic number.

It is not a de Polignac number, because 76319989 - 2¹⁵ = 76287221 is a prime.

It is a super-3 number, since 3×76319989³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76319939) 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 in 3 ways as a sum of consecutive naturals, for example, 6879 + ... + 14140.

It is an arithmetic number, because the mean of its divisors is an integer number (19086160).

Almost surely, 2^76319989 is an apocalyptic number.

It is an amenable number.

76319989 is a deficient number, since it is larger than the sum of its proper divisors (24651).

76319989 is a wasteful number, since it uses less digits than its factorization.

76319989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24650.

The product of its digits is 734832, while the sum is 52.

The square root of 76319989 is about 8736.1312375673. The cubic root of 76319989 is about 424.1760071605.

The spelling of 76319989 in words is "seventy-six million, three hundred nineteen thousand, nine hundred eighty-nine".