39989253 has 8 divisors (see below), whose sum is σ = 56455488. Its totient is φ = 25091264.

The previous prime is 39989251. The next prime is 39989263. The reversal of 39989253 is 35298993.

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

It is a cyclic number.

It is not a de Polignac number, because 39989253 - 2¹ = 39989251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39989251) 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, 392001 + ... + 392102.

It is an arithmetic number, because the mean of its divisors is an integer number (7056936).

Almost surely, 2^39989253 is an apocalyptic number.

It is an amenable number.

39989253 is a deficient number, since it is larger than the sum of its proper divisors (16466235).

39989253 is a wasteful number, since it uses less digits than its factorization.

39989253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784123.

The product of its digits is 524880, while the sum is 48.

The square root of 39989253 is about 6323.7056383105. The cubic root of 39989253 is about 341.9645580727.

The spelling of 39989253 in words is "thirty-nine million, nine hundred eighty-nine thousand, two hundred fifty-three".