21714608 has 10 divisors (see below), whose sum is σ = 42072084. Its totient is φ = 10857296.

The previous prime is 21714607. The next prime is 21714617. The reversal of 21714608 is 80641712.

It is not an unprimeable number, because it can be changed into a prime (21714607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678566 + ... + 678597.

Almost surely, 2^21714608 is an apocalyptic number.

It is an amenable number.

21714608 is a deficient number, since it is larger than the sum of its proper divisors (20357476).

21714608 is a wasteful number, since it uses less digits than its factorization.

21714608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357171 (or 1357165 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 21714608 is about 4659.8935610162. The cubic root of 21714608 is about 278.9870199466.

It can be divided in two parts, 21714 and 608, that added together give a palindrome (22322).

The spelling of 21714608 in words is "twenty-one million, seven hundred fourteen thousand, six hundred eight".