21496654 has 8 divisors (see below), whose sum is σ = 32282208. Its totient is φ = 10735920.

The previous prime is 21496649. The next prime is 21496661. The reversal of 21496654 is 45669412.

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

It is a super-2 number, since 2×21496654² = 924212266391432, which contains 22 as substring.

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, 3862 + ... + 7609.

It is an arithmetic number, because the mean of its divisors is an integer number (4035276).

Almost surely, 2^21496654 is an apocalyptic number.

21496654 is a deficient number, since it is larger than the sum of its proper divisors (10785554).

21496654 is a wasteful number, since it uses less digits than its factorization.

21496654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12410.

The product of its digits is 51840, while the sum is 37.

The square root of 21496654 is about 4636.4484252497. The cubic root of 21496654 is about 278.0504626922.

The spelling of 21496654 in words is "twenty-one million, four hundred ninety-six thousand, six hundred fifty-four".