21362698 has 16 divisors (see below), whose sum is σ = 37001664. Its totient is φ = 9060480.

The previous prime is 21362651. The next prime is 21362711. The reversal of 21362698 is 89626312.

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 7 ways as a sum of consecutive naturals, for example, 6508 + ... + 9223.

It is an arithmetic number, because the mean of its divisors is an integer number (2312604).

Almost surely, 2^21362698 is an apocalyptic number.

21362698 is a deficient number, since it is larger than the sum of its proper divisors (15638966).

21362698 is a wasteful number, since it uses less digits than its factorization.

21362698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15837.

The product of its digits is 31104, while the sum is 37.

The square root of 21362698 is about 4621.9798787965. The cubic root of 21362698 is about 277.4717034156.

The spelling of 21362698 in words is "twenty-one million, three hundred sixty-two thousand, six hundred ninety-eight".