39506961 has 24 divisors (see below), whose sum is σ = 59028480. Its totient is φ = 23464896.

The previous prime is 39506959. The next prime is 39506969. The reversal of 39506961 is 16960593.

It is not a de Polignac number, because 39506961 - 2¹ = 39506959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (39506969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13360 + ... + 16046.

It is an arithmetic number, because the mean of its divisors is an integer number (2459520).

Almost surely, 2^39506961 is an apocalyptic number.

It is an amenable number.

39506961 is a deficient number, since it is larger than the sum of its proper divisors (19521519).

39506961 is a wasteful number, since it uses less digits than its factorization.

39506961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 39506961 is about 6285.4563080177. The cubic root of 39506961 is about 340.5842348432.

The spelling of 39506961 in words is "thirty-nine million, five hundred six thousand, nine hundred sixty-one".