39686073 has 16 divisors (see below), whose sum is σ = 61950336. Its totient is φ = 22124160.

The previous prime is 39686071. The next prime is 39686083. The reversal of 39686073 is 37068693.

It is not a de Polignac number, because 39686073 - 2¹ = 39686071 is a prime.

It is a super-2 number, since 2×39686073² = 3149968780322658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39686071) 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, 22186 + ... + 23907.

It is an arithmetic number, because the mean of its divisors is an integer number (3871896).

Almost surely, 2^39686073 is an apocalyptic number.

It is an amenable number.

39686073 is a deficient number, since it is larger than the sum of its proper divisors (22264263).

39686073 is a wasteful number, since it uses less digits than its factorization.

39686073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46144.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 39686073 is about 6299.6883256237. The cubic root of 39686073 is about 341.0981591783.

The spelling of 39686073 in words is "thirty-nine million, six hundred eighty-six thousand, seventy-three".