20087901 has 24 divisors (see below), whose sum is σ = 30865536. Its totient is φ = 12561120.

The previous prime is 20087869. The next prime is 20087927. The reversal of 20087901 is 10978002.

It is not a de Polignac number, because 20087901 - 2⁵ = 20087869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20087701) 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 23 ways as a sum of consecutive naturals, for example, 10056 + ... + 11886.

It is an arithmetic number, because the mean of its divisors is an integer number (1286064).

Almost surely, 2^20087901 is an apocalyptic number.

It is an amenable number.

20087901 is a deficient number, since it is larger than the sum of its proper divisors (10777635).

20087901 is a wasteful number, since it uses less digits than its factorization.

20087901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 20087901 is about 4481.9528109966. The cubic root of 20087901 is about 271.8388471943.

The spelling of 20087901 in words is "twenty million, eighty-seven thousand, nine hundred one".