21714892 has 6 divisors (see below), whose sum is σ = 38001068. Its totient is φ = 10857444.

The previous prime is 21714887. The next prime is 21714907. The reversal of 21714892 is 29841712.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2714358 + ... + 2714365.

Almost surely, 2^21714892 is an apocalyptic number.

It is an amenable number.

21714892 is a deficient number, since it is larger than the sum of its proper divisors (16286176).

21714892 is a wasteful number, since it uses less digits than its factorization.

21714892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428727 (or 5428725 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 21714892 is about 4659.9240337156. The cubic root of 21714892 is about 278.9882362087.

The spelling of 21714892 in words is "twenty-one million, seven hundred fourteen thousand, eight hundred ninety-two".