20712401 has 8 divisors (see below), whose sum is σ = 21065184. Its totient is φ = 20362240.

The previous prime is 20712353. The next prime is 20712403. The reversal of 20712401 is 10421702.

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 20712401 - 2¹⁰ = 20711377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20712401.

It is not an unprimeable number, because it can be changed into a prime (20712403) 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, 20846 + ... + 21816.

It is an arithmetic number, because the mean of its divisors is an integer number (2633148).

Almost surely, 2^20712401 is an apocalyptic number.

It is an amenable number.

20712401 is a deficient number, since it is larger than the sum of its proper divisors (352783).

20712401 is an equidigital number, since it uses as much as digits as its factorization.

20712401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 20712401 is about 4551.0878919221. The cubic root of 20712401 is about 274.6271575420.

The spelling of 20712401 in words is "twenty million, seven hundred twelve thousand, four hundred one".