76959681 has 8 divisors (see below), whose sum is σ = 102948384. Its totient is φ = 51138720.

The previous prime is 76959647. The next prime is 76959689. The reversal of 76959681 is 18695967.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76959681 - 2¹⁹ = 76435393 is a prime.

It is a super-2 number, since 2×76959681² = 11845584999243522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76959689) 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 7 ways as a sum of consecutive naturals, for example, 40860 + ... + 42701.

It is an arithmetic number, because the mean of its divisors is an integer number (12868548).

Almost surely, 2^76959681 is an apocalyptic number.

It is an amenable number.

76959681 is a deficient number, since it is larger than the sum of its proper divisors (25988703).

76959681 is a wasteful number, since it uses less digits than its factorization.

76959681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83871.

The product of its digits is 816480, while the sum is 51.

The square root of 76959681 is about 8772.6666983307. Note that the first 4 decimals coincide. The cubic root of 76959681 is about 425.3578181519.

The spelling of 76959681 in words is "seventy-six million, nine hundred fifty-nine thousand, six hundred eighty-one".