39937413 has 4 divisors (see below), whose sum is σ = 53249888. Its totient is φ = 26624940.

The previous prime is 39937399. The next prime is 39937421. The reversal of 39937413 is 31473993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31473993 = 3 ⋅10491331.

It is not a de Polignac number, because 39937413 - 2⁴ = 39937397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39937433) 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 3 ways as a sum of consecutive naturals, for example, 6656233 + ... + 6656238.

It is an arithmetic number, because the mean of its divisors is an integer number (13312472).

Almost surely, 2^39937413 is an apocalyptic number.

It is an amenable number.

39937413 is a deficient number, since it is larger than the sum of its proper divisors (13312475).

39937413 is a wasteful number, since it uses less digits than its factorization.

39937413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13312474.

The product of its digits is 61236, while the sum is 39.

The square root of 39937413 is about 6319.6054465449. The cubic root of 39937413 is about 341.8167257828.

The spelling of 39937413 in words is "thirty-nine million, nine hundred thirty-seven thousand, four hundred thirteen".