96987979 has 4 divisors (see below), whose sum is σ = 105805080. Its totient is φ = 88170880.

The previous prime is 96987967. The next prime is 96987983. The reversal of 96987979 is 97978969.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97978969 = 11 ⋅8907179.

It is a cyclic number.

It is not a de Polignac number, because 96987979 - 2⁹ = 96987467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 96987979.

It is not an unprimeable number, because it can be changed into a prime (96987379) 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, 4408534 + ... + 4408555.

It is an arithmetic number, because the mean of its divisors is an integer number (26451270).

Almost surely, 2^96987979 is an apocalyptic number.

96987979 is a deficient number, since it is larger than the sum of its proper divisors (8817101).

96987979 is a wasteful number, since it uses less digits than its factorization.

96987979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8817100.

The product of its digits is 15431472, while the sum is 64.

The square root of 96987979 is about 9848.2475090749. The cubic root of 96987979 is about 459.4511080588.

The spelling of 96987979 in words is "ninety-six million, nine hundred eighty-seven thousand, nine hundred seventy-nine".