20366087 has 16 divisors (see below), whose sum is σ = 24041472. Its totient is φ = 16891200.

The previous prime is 20366069. The next prime is 20366089. The reversal of 20366087 is 78066302.

It is a cyclic number.

It is not a de Polignac number, because 20366087 - 2²⁰ = 19317511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20366089) 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, 33587 + ... + 34187.

It is an arithmetic number, because the mean of its divisors is an integer number (1502592).

Almost surely, 2^20366087 is an apocalyptic number.

20366087 is a deficient number, since it is larger than the sum of its proper divisors (3675385).

20366087 is a wasteful number, since it uses less digits than its factorization.

20366087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20366087 is about 4512.8801224938. The cubic root of 20366087 is about 273.0879463686.

The spelling of 20366087 in words is "twenty million, three hundred sixty-six thousand, eighty-seven".