21460895 has 8 divisors (see below), whose sum is σ = 26063856. Its totient is φ = 16961536.

The previous prime is 21460889. The next prime is 21460927. The reversal of 21460895 is 59806412.

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

It is a cyclic number.

It is not a de Polignac number, because 21460895 - 2²⁰ = 20412319 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 25442 + ... + 26271.

It is an arithmetic number, because the mean of its divisors is an integer number (3257982).

Almost surely, 2^21460895 is an apocalyptic number.

21460895 is a deficient number, since it is larger than the sum of its proper divisors (4602961).

21460895 is an equidigital number, since it uses as much as digits as its factorization.

21460895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51801.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 21460895 is about 4632.5905279876. The cubic root of 21460895 is about 277.8962010913.

The spelling of 21460895 in words is "twenty-one million, four hundred sixty thousand, eight hundred ninety-five".