20102893 has 16 divisors (see below), whose sum is σ = 21888000. Its totient is φ = 18403632.

The previous prime is 20102861. The next prime is 20102899. The reversal of 20102893 is 39820102.

It is a cyclic number.

It is not a de Polignac number, because 20102893 - 2⁵ = 20102861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102899) 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, 88446 + ... + 88672.

It is an arithmetic number, because the mean of its divisors is an integer number (1368000).

Almost surely, 2^20102893 is an apocalyptic number.

It is an amenable number.

20102893 is a deficient number, since it is larger than the sum of its proper divisors (1785107).

20102893 is a wasteful number, since it uses less digits than its factorization.

20102893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20102893 is about 4483.6249843179. The cubic root of 20102893 is about 271.9064566236.

Adding to 20102893 its reverse (39820102), we get a palindrome (59922995).

The spelling of 20102893 in words is "twenty million, one hundred two thousand, eight hundred ninety-three".