20608708 has 6 divisors (see below), whose sum is σ = 36065246. Its totient is φ = 10304352.

The previous prime is 20608681. The next prime is 20608723. The reversal of 20608708 is 80780602.

It can be written as a sum of positive squares in only one way, i.e., 13307904 + 7300804 = 3648^2 + 2702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20608708.

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 as a sum of consecutive naturals, namely, 2576085 + ... + 2576092.

Almost surely, 2^20608708 is an apocalyptic number.

It is an amenable number.

20608708 is a deficient number, since it is larger than the sum of its proper divisors (15456538).

20608708 is a wasteful number, since it uses less digits than its factorization.

20608708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152181 (or 5152179 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 20608708 is about 4539.6814866244. The cubic root of 20608708 is about 274.1680997370.

It can be divided in two parts, 20608 and 708, that added together give a square (21316 = 146²).

The spelling of 20608708 in words is "twenty million, six hundred eight thousand, seven hundred eight".