20268087 has 8 divisors (see below), whose sum is σ = 30884736. Its totient is φ = 11581752.

The previous prime is 20268077. The next prime is 20268089. The reversal of 20268087 is 78086202.

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

It is not a de Polignac number, because 20268087 - 2¹¹ = 20266039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20268089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482553 + ... + 482594.

It is an arithmetic number, because the mean of its divisors is an integer number (3860592).

Almost surely, 2^20268087 is an apocalyptic number.

20268087 is a deficient number, since it is larger than the sum of its proper divisors (10616649).

20268087 is an equidigital number, since it uses as much as digits as its factorization.

20268087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965157.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 20268087 is about 4502.0092181158. The cubic root of 20268087 is about 272.6492160354.

The spelling of 20268087 in words is "twenty million, two hundred sixty-eight thousand, eighty-seven".