20653039 has 8 divisors (see below), whose sum is σ = 22683600. Its totient is φ = 18648000.

The previous prime is 20653007. The next prime is 20653063. The reversal of 20653039 is 93035602.

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 20653039 - 2⁵ = 20653007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20652998 and 20653016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20653439) 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, 4662 + ... + 7939.

It is an arithmetic number, because the mean of its divisors is an integer number (2835450).

Almost surely, 2^20653039 is an apocalyptic number.

20653039 is a deficient number, since it is larger than the sum of its proper divisors (2030561).

20653039 is a wasteful number, since it uses less digits than its factorization.

20653039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12761.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 20653039 is about 4544.5614749940. The cubic root of 20653039 is about 274.3645448769.

The spelling of 20653039 in words is "twenty million, six hundred fifty-three thousand, thirty-nine".