39874157 has 4 divisors (see below), whose sum is σ = 41607840. Its totient is φ = 38140476.

The previous prime is 39874151. The next prime is 39874169. The reversal of 39874157 is 75147893.

39874157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 39874157 - 2¹⁴ = 39857773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39874151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866807 + ... + 866852.

It is an arithmetic number, because the mean of its divisors is an integer number (10401960).

Almost surely, 2^39874157 is an apocalyptic number.

It is an amenable number.

39874157 is a deficient number, since it is larger than the sum of its proper divisors (1733683).

39874157 is a wasteful number, since it uses less digits than its factorization.

39874157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733682.

The product of its digits is 211680, while the sum is 44.

The square root of 39874157 is about 6314.5987204256. The cubic root of 39874157 is about 341.6361650608.

The spelling of 39874157 in words is "thirty-nine million, eight hundred seventy-four thousand, one hundred fifty-seven".