20793413 has 4 divisors (see below), whose sum is σ = 20802540. Its totient is φ = 20784288.

The previous prime is 20793407. The next prime is 20793419. The reversal of 20793413 is 31439702.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (20793407) and next prime (20793419).

It can be written as a sum of positive squares in 2 ways, for example, as 4008004 + 16785409 = 2002^2 + 4097^2 .

It is a cyclic number.

It is not a de Polignac number, because 20793413 - 2¹⁰ = 20792389 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 (20793419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (5200635).

Almost surely, 2^20793413 is an apocalyptic number.

It is an amenable number.

20793413 is a deficient number, since it is larger than the sum of its proper divisors (9127).

20793413 is an equidigital number, since it uses as much as digits as its factorization.

20793413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9126.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20793413 is about 4559.9794955679. The cubic root of 20793413 is about 274.9847396491.

The spelling of 20793413 in words is "twenty million, seven hundred ninety-three thousand, four hundred thirteen".