20790501 has 4 divisors (see below), whose sum is σ = 27720672. Its totient is φ = 13860332.

The previous prime is 20790467. The next prime is 20790527. The reversal of 20790501 is 10509702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20790501 - 2⁶ = 20790437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20790571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3465081 + ... + 3465086.

It is an arithmetic number, because the mean of its divisors is an integer number (6930168).

Almost surely, 2^20790501 is an apocalyptic number.

It is an amenable number.

20790501 is a deficient number, since it is larger than the sum of its proper divisors (6930171).

20790501 is an equidigital number, since it uses as much as digits as its factorization.

20790501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930170.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 20790501 is about 4559.6601847068. The cubic root of 20790501 is about 274.9719023634.

The spelling of 20790501 in words is "twenty million, seven hundred ninety thousand, five hundred one".