21314716 has 12 divisors (see below), whose sum is σ = 37400832. Its totient is φ = 10628768.

The previous prime is 21314687. The next prime is 21314729. The reversal of 21314716 is 61741312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5425 + ... + 8488.

It is an arithmetic number, because the mean of its divisors is an integer number (3116736).

Almost surely, 2^21314716 is an apocalyptic number.

It is an amenable number.

21314716 is a deficient number, since it is larger than the sum of its proper divisors (16086116).

21314716 is a wasteful number, since it uses less digits than its factorization.

21314716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14300 (or 14298 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 21314716 is about 4616.7863281724. The cubic root of 21314716 is about 277.2638078976.

The spelling of 21314716 in words is "twenty-one million, three hundred fourteen thousand, seven hundred sixteen".