21196704 has 48 divisors (see below), whose sum is σ = 58574880. Its totient is φ = 6693120.

The previous prime is 21196697. The next prime is 21196711. The reversal of 21196704 is 40769112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21196697) and next prime (21196711).

It is a tau number, because it is divible by the number of its divisors (48).

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, 3987 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (1220310).

Almost surely, 2^21196704 is an apocalyptic number.

21196704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21196704 is an abundant number, since it is smaller than the sum of its proper divisors (37378176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21196704 is a wasteful number, since it uses less digits than its factorization.

21196704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11653 (or 11645 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 21196704 is about 4603.9878366477. The cubic root of 21196704 is about 276.7511569181.

The spelling of 21196704 in words is "twenty-one million, one hundred ninety-six thousand, seven hundred four".