39498979 has 16 divisors (see below), whose sum is σ = 43696800. Its totient is φ = 35481600.

The previous prime is 39498971. The next prime is 39499003. The reversal of 39498979 is 97989493.

It is a cyclic number.

It is not a de Polignac number, because 39498979 - 2³ = 39498971 is a prime.

It is a super-3 number, since 3×39498979³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39498971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87747 + ... + 88195.

It is an arithmetic number, because the mean of its divisors is an integer number (2731050).

Almost surely, 2^39498979 is an apocalyptic number.

39498979 is a deficient number, since it is larger than the sum of its proper divisors (4197821).

39498979 is a wasteful number, since it uses less digits than its factorization.

39498979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630.

The product of its digits is 4408992, while the sum is 58.

The square root of 39498979 is about 6284.8213180647. The cubic root of 39498979 is about 340.5612960463.

The spelling of 39498979 in words is "thirty-nine million, four hundred ninety-eight thousand, nine hundred seventy-nine".