20606612 has 24 divisors (see below), whose sum is σ = 39573576. Its totient is φ = 9330048.

The previous prime is 20606563. The next prime is 20606627. The reversal of 20606612 is 21660602.

It can be written as a sum of positive squares in 4 ways, for example, as 6574096 + 14032516 = 2564^2 + 3746^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 983 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (1648899).

Almost surely, 2^20606612 is an apocalyptic number.

It is an amenable number.

20606612 is a deficient number, since it is larger than the sum of its proper divisors (18966964).

20606612 is a wasteful number, since it uses less digits than its factorization.

20606612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7547 (or 7545 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20606612 is about 4539.4506275540. The cubic root of 20606612 is about 274.1588047047.

The spelling of 20606612 in words is "twenty million, six hundred six thousand, six hundred twelve".