20764196 has 6 divisors (see below), whose sum is σ = 36337350. Its totient is φ = 10382096.

The previous prime is 20764189. The next prime is 20764213. The reversal of 20764196 is 69146702.

It can be written as a sum of positive squares in only one way, i.e., 20124196 + 640000 = 4486^2 + 800^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595521 + ... + 2595528.

It is an arithmetic number, because the mean of its divisors is an integer number (6056225).

Almost surely, 2^20764196 is an apocalyptic number.

It is an amenable number.

20764196 is a deficient number, since it is larger than the sum of its proper divisors (15573154).

20764196 is a wasteful number, since it uses less digits than its factorization.

20764196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191053 (or 5191051 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 20764196 is about 4556.7747365873. The cubic root of 20764196 is about 274.8558848195.

The spelling of 20764196 in words is "twenty million, seven hundred sixty-four thousand, one hundred ninety-six".