20906614 has 4 divisors (see below), whose sum is σ = 31359924. Its totient is φ = 10453306.

The previous prime is 20906581. The next prime is 20906629. The reversal of 20906614 is 41660902.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 5226652 + ... + 5226655.

It is an arithmetic number, because the mean of its divisors is an integer number (7839981).

Almost surely, 2^20906614 is an apocalyptic number.

20906614 is a deficient number, since it is larger than the sum of its proper divisors (10453310).

20906614 is a wasteful number, since it uses less digits than its factorization.

20906614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10453309.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20906614 is about 4572.3750939747. The cubic root of 20906614 is about 275.4828497794.

The spelling of 20906614 in words is "twenty million, nine hundred six thousand, six hundred fourteen".