20793315 has 16 divisors (see below), whose sum is σ = 35020800. Its totient is φ = 10505952.

The previous prime is 20793313. The next prime is 20793323. The reversal of 20793315 is 51339702.

It is not a de Polignac number, because 20793315 - 2¹ = 20793313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20793313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36195 + ... + 36764.

It is an arithmetic number, because the mean of its divisors is an integer number (2188800).

Almost surely, 2^20793315 is an apocalyptic number.

20793315 is a deficient number, since it is larger than the sum of its proper divisors (14227485).

20793315 is a wasteful number, since it uses less digits than its factorization.

20793315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72986.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 20793315 is about 4559.9687498929. The cubic root of 20793315 is about 274.9843076445.

The spelling of 20793315 in words is "twenty million, seven hundred ninety-three thousand, three hundred fifteen".