21901714 has 8 divisors (see below), whose sum is σ = 33171840. Its totient is φ = 10844436.

The previous prime is 21901709. The next prime is 21901739. The reversal of 21901714 is 41710912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21901714² = 959370152275592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52954 + ... + 53365.

It is an arithmetic number, because the mean of its divisors is an integer number (4146480).

Almost surely, 2^21901714 is an apocalyptic number.

21901714 is a deficient number, since it is larger than the sum of its proper divisors (11270126).

21901714 is a wasteful number, since it uses less digits than its factorization.

21901714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106424.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 21901714 is about 4679.9267088278. The cubic root of 21901714 is about 279.7860355184.

The spelling of 21901714 in words is "twenty-one million, nine hundred one thousand, seven hundred fourteen".