20606602 has 12 divisors (see below), whose sum is σ = 32623506. Its totient is φ = 9760680.

The previous prime is 20606563. The next prime is 20606627. The reversal of 20606602 is 20660602.

It can be written as a sum of positive squares in only one way, i.e., 19263321 + 1343281 = 4389^2 + 1159^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13549 + ... + 14992.

Almost surely, 2^20606602 is an apocalyptic number.

20606602 is a deficient number, since it is larger than the sum of its proper divisors (12016904).

20606602 is a wasteful number, since it uses less digits than its factorization.

20606602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28581 (or 28562 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20606602 is about 4539.4495260990. The cubic root of 20606602 is about 274.1587603567.

The spelling of 20606602 in words is "twenty million, six hundred six thousand, six hundred two".