21526714 has 16 divisors (see below), whose sum is σ = 35652960. Its totient is φ = 9666160.

The previous prime is 21526693. The next prime is 21526727. The reversal of 21526714 is 41762512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4069 + ... + 7720.

It is an arithmetic number, because the mean of its divisors is an integer number (2228310).

Almost surely, 2^21526714 is an apocalyptic number.

21526714 is a deficient number, since it is larger than the sum of its proper divisors (14126246).

21526714 is a wasteful number, since it uses less digits than its factorization.

21526714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11885.

The product of its digits is 3360, while the sum is 28.

The square root of 21526714 is about 4639.6889981980. The cubic root of 21526714 is about 278.1800069462.

The spelling of 21526714 in words is "twenty-one million, five hundred twenty-six thousand, seven hundred fourteen".