108986979 has 32 divisors (see below), whose sum is σ = 155731968. Its totient is φ = 67680000.

The previous prime is 108986971. The next prime is 108986987. The reversal of 108986979 is 979689801.

It is an interprime number because it is at equal distance from previous prime (108986971) and next prime (108986987).

It is not a de Polignac number, because 108986979 - 2³ = 108986971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108986971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384972 + ... + 385254.

It is an arithmetic number, because the mean of its divisors is an integer number (4866624).

Almost surely, 2^108986979 is an apocalyptic number.

108986979 is a deficient number, since it is larger than the sum of its proper divisors (46744989).

108986979 is a wasteful number, since it uses less digits than its factorization.

108986979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459.

The product of its (nonzero) digits is 1959552, while the sum is 57.

The square root of 108986979 is about 10439.6828974830. The cubic root of 108986979 is about 477.6665961092. Note that the first 3 decimals are identical.

The spelling of 108986979 in words is "one hundred eight million, nine hundred eighty-six thousand, nine hundred seventy-nine".