21795674 has 16 divisors (see below), whose sum is σ = 34300800. Its totient is φ = 10367280.

The previous prime is 21795673. The next prime is 21795677. The reversal of 21795674 is 47659712.

It is a super-2 number, since 2×21795674² = 950102810228552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21795673) 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, 7964 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (2143800).

Almost surely, 2^21795674 is an apocalyptic number.

21795674 is a deficient number, since it is larger than the sum of its proper divisors (12505126).

21795674 is a wasteful number, since it uses less digits than its factorization.

21795674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605.

The product of its digits is 105840, while the sum is 41.

The square root of 21795674 is about 4668.5837252854. The cubic root of 21795674 is about 279.3337646484. Note that the first 3 decimals are identical.

The spelling of 21795674 in words is "twenty-one million, seven hundred ninety-five thousand, six hundred seventy-four".