21076265 has 8 divisors (see below), whose sum is σ = 28904640. Its totient is φ = 14452272.

The previous prime is 21076261. The next prime is 21076267. The reversal of 21076265 is 56267012.

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 21076265 - 2² = 21076261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21076261) 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, 301055 + ... + 301124.

It is an arithmetic number, because the mean of its divisors is an integer number (3613080).

Almost surely, 2^21076265 is an apocalyptic number.

It is an amenable number.

21076265 is a deficient number, since it is larger than the sum of its proper divisors (7828375).

21076265 is an equidigital number, since it uses as much as digits as its factorization.

21076265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602191.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 21076265 is about 4590.8893473923. The cubic root of 21076265 is about 276.2259972457.

The spelling of 21076265 in words is "twenty-one million, seventy-six thousand, two hundred sixty-five".