39561189 has 8 divisors (see below), whose sum is σ = 52778880. Its totient is φ = 26358816.

The previous prime is 39561163. The next prime is 39561209. The reversal of 39561189 is 98116593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39561189 - 2⁷ = 39561061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39561189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39561149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5332 + ... + 10370.

It is an arithmetic number, because the mean of its divisors is an integer number (6597360).

Almost surely, 2^39561189 is an apocalyptic number.

It is an amenable number.

39561189 is a deficient number, since it is larger than the sum of its proper divisors (13217691).

39561189 is a wasteful number, since it uses less digits than its factorization.

39561189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7659.

The product of its digits is 58320, while the sum is 42.

The square root of 39561189 is about 6289.7685966973. The cubic root of 39561189 is about 340.7399943808.

The spelling of 39561189 in words is "thirty-nine million, five hundred sixty-one thousand, one hundred eighty-nine".