20039071 has 8 divisors (see below), whose sum is σ = 21650384. Its totient is φ = 18437760.

The previous prime is 20039069. The next prime is 20039077. The reversal of 20039071 is 17093002.

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 20039071 - 2¹ = 20039069 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 (20039077) 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, 1975 + ... + 6631.

It is an arithmetic number, because the mean of its divisors is an integer number (2706298).

Almost surely, 2^20039071 is an apocalyptic number.

20039071 is a deficient number, since it is larger than the sum of its proper divisors (1611313).

20039071 is a wasteful number, since it uses less digits than its factorization.

20039071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 20039071 is about 4476.5020942696. The cubic root of 20039071 is about 271.6184050333.

The spelling of 20039071 in words is "twenty million, thirty-nine thousand, seventy-one".