20392853 has 8 divisors (see below), whose sum is σ = 22024800. Its totient is φ = 18769968.

The previous prime is 20392847. The next prime is 20392873. The reversal of 20392853 is 35829302.

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 20392853 - 2¹² = 20388757 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 (20392873) 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, 2858 + ... + 6996.

It is an arithmetic number, because the mean of its divisors is an integer number (2753100).

Almost surely, 2^20392853 is an apocalyptic number.

It is an amenable number.

20392853 is a deficient number, since it is larger than the sum of its proper divisors (1631947).

20392853 is a wasteful number, since it uses less digits than its factorization.

20392853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 20392853 is about 4515.8446607473. The cubic root of 20392853 is about 273.2075286946.

The spelling of 20392853 in words is "twenty million, three hundred ninety-two thousand, eight hundred fifty-three".