20907606 has 16 divisors (see below), whose sum is σ = 42230448. Its totient is φ = 6900000.

The previous prime is 20907571. The next prime is 20907631. The reversal of 20907606 is 60670902.

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, 16645 + ... + 17856.

It is an arithmetic number, because the mean of its divisors is an integer number (2639403).

Almost surely, 2^20907606 is an apocalyptic number.

20907606 is an abundant number, since it is smaller than the sum of its proper divisors (21322842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20907606 is a wasteful number, since it uses less digits than its factorization.

20907606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34607.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 20907606 is about 4572.4835702275. The cubic root of 20907606 is about 275.4872068482.

The spelling of 20907606 in words is "twenty million, nine hundred seven thousand, six hundred six".