87948984979 has 8 divisors (see below), whose sum is σ = 89572860720. Its totient is φ = 86330983200.

The previous prime is 87948984971. The next prime is 87948985051. The reversal of 87948984979 is 97948984978.

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

It is a cyclic number.

It is not a de Polignac number, because 87948984979 - 2³ = 87948984971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87948984971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1438264 + ... + 1498165.

It is an arithmetic number, because the mean of its divisors is an integer number (11196607590).

Almost surely, 2^87948984979 is an apocalyptic number.

87948984979 is a deficient number, since it is larger than the sum of its proper divisors (1623875741).

87948984979 is a wasteful number, since it uses less digits than its factorization.

87948984979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936981.

The product of its digits is 2633637888, while the sum is 82.

Subtracting 87948984979 from its reverse (97948984978), we obtain a palindrome (9999999999).

The spelling of 87948984979 in words is "eighty-seven billion, nine hundred forty-eight million, nine hundred eighty-four thousand, nine hundred seventy-nine".