39018971 has 8 divisors (see below), whose sum is σ = 41484960. Its totient is φ = 36617152.

The previous prime is 39018953. The next prime is 39018983. The reversal of 39018971 is 17981093.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39018971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39018911) 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, 14786 + ... + 17223.

It is an arithmetic number, because the mean of its divisors is an integer number (5185620).

Almost surely, 2^39018971 is an apocalyptic number.

39018971 is a deficient number, since it is larger than the sum of its proper divisors (2465989).

39018971 is a wasteful number, since it uses less digits than its factorization.

39018971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32085.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 39018971 is about 6246.5167093349. The cubic root of 39018971 is about 339.1761222873.

The spelling of 39018971 in words is "thirty-nine million, eighteen thousand, nine hundred seventy-one".