20886267 has 8 divisors (see below), whose sum is σ = 27993424. Its totient is φ = 13851648.

The previous prime is 20886259. The next prime is 20886269. The reversal of 20886267 is 76268802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20886267 - 2³ = 20886259 is a prime.

It is a super-2 number, since 2×20886267² = 872472298390578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20886269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17458 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (3499178).

Almost surely, 2^20886267 is an apocalyptic number.

20886267 is a deficient number, since it is larger than the sum of its proper divisors (7107157).

20886267 is a wasteful number, since it uses less digits than its factorization.

20886267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36269.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 20886267 is about 4570.1495599160. The cubic root of 20886267 is about 275.3934511337.

The spelling of 20886267 in words is "twenty million, eight hundred eighty-six thousand, two hundred sixty-seven".