39986065 has 16 divisors (see below), whose sum is σ = 55123200. Its totient is φ = 27276480.

The previous prime is 39986059. The next prime is 39986071. The reversal of 39986065 is 56068993.

It is an interprime number because it is at equal distance from previous prime (39986059) and next prime (39986071).

It is not a de Polignac number, because 39986065 - 2⁵ = 39986033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4095 + ... + 9835.

It is an arithmetic number, because the mean of its divisors is an integer number (3445200).

Almost surely, 2^39986065 is an apocalyptic number.

39986065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39986065 is a deficient number, since it is larger than the sum of its proper divisors (15137135).

39986065 is a wasteful number, since it uses less digits than its factorization.

39986065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 39986065 is about 6323.4535658926. The cubic root of 39986065 is about 341.9554705313.

The spelling of 39986065 in words is "thirty-nine million, nine hundred eighty-six thousand, sixty-five".