21070596 has 12 divisors (see below), whose sum is σ = 49164752. Its totient is φ = 7023528.

The previous prime is 21070589. The next prime is 21070603. The reversal of 21070596 is 69507012.

It is an interprime number because it is at equal distance from previous prime (21070589) and next prime (21070603).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877930 + ... + 877953.

Almost surely, 2^21070596 is an apocalyptic number.

It is an amenable number.

21070596 is an abundant number, since it is smaller than the sum of its proper divisors (28094156).

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

21070596 is a wasteful number, since it uses less digits than its factorization.

21070596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755890 (or 1755888 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 21070596 is about 4590.2718873723. The cubic root of 21070596 is about 276.2012290116.

The spelling of 21070596 in words is "twenty-one million, seventy thousand, five hundred ninety-six".