39980017 has 16 divisors (see below), whose sum is σ = 51196032. Its totient is φ = 30309120.

The previous prime is 39979999. The next prime is 39980023. The reversal of 39980017 is 71008993.

It is a cyclic number.

It is not a de Polignac number, because 39980017 - 2⁷ = 39979889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39980077) 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, 4168 + ... + 9865.

It is an arithmetic number, because the mean of its divisors is an integer number (3199752).

Almost surely, 2^39980017 is an apocalyptic number.

39980017 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

39980017 is a deficient number, since it is larger than the sum of its proper divisors (11216015).

39980017 is a wasteful number, since it uses less digits than its factorization.

39980017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14088.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 39980017 is about 6322.9753281189. The cubic root of 39980017 is about 341.9382291001.

The spelling of 39980017 in words is "thirty-nine million, nine hundred eighty thousand, seventeen".