20210896 has 10 divisors (see below), whose sum is σ = 39158642. Its totient is φ = 10105440.

The previous prime is 20210891. The next prime is 20210899. The reversal of 20210896 is 69801202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19044496 + 1166400 = 4364^2 + 1080^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631575 + ... + 631606.

Almost surely, 2^20210896 is an apocalyptic number.

It is an amenable number.

20210896 is a deficient number, since it is larger than the sum of its proper divisors (18947746).

20210896 is a wasteful number, since it uses less digits than its factorization.

20210896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263189 (or 1263183 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20210896 is about 4495.6530115212. The cubic root of 20210896 is about 272.3925272678.

The spelling of 20210896 in words is "twenty million, two hundred ten thousand, eight hundred ninety-six".