21476696 has 8 divisors (see below), whose sum is σ = 40268820. Its totient is φ = 10738344.

The previous prime is 21476671. The next prime is 21476699. The reversal of 21476696 is 69667412.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21476696² = 922496942152832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21476699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342286 + ... + 1342301.

Almost surely, 2^21476696 is an apocalyptic number.

It is an amenable number.

21476696 is a deficient number, since it is larger than the sum of its proper divisors (18792124).

21476696 is a wasteful number, since it uses less digits than its factorization.

21476696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684593 (or 2684589 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 21476696 is about 4634.2956314849. The cubic root of 21476696 is about 277.9643865150.

The spelling of 21476696 in words is "twenty-one million, four hundred seventy-six thousand, six hundred ninety-six".