20197796 has 12 divisors (see below), whose sum is σ = 35844480. Its totient is φ = 9956520.

The previous prime is 20197787. The next prime is 20197799. The reversal of 20197796 is 69779102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20197799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35276 + ... + 35843.

It is an arithmetic number, because the mean of its divisors is an integer number (2987040).

Almost surely, 2^20197796 is an apocalyptic number.

It is an amenable number.

20197796 is a deficient number, since it is larger than the sum of its proper divisors (15646684).

20197796 is a wasteful number, since it uses less digits than its factorization.

20197796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71194 (or 71192 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 20197796 is about 4494.1958123785. The cubic root of 20197796 is about 272.3336627599. Note that the first 3 decimals are identical.

The spelling of 20197796 in words is "twenty million, one hundred ninety-seven thousand, seven hundred ninety-six".