20659094 has 4 divisors (see below), whose sum is σ = 30988644. Its totient is φ = 10329546.

The previous prime is 20659087. The next prime is 20659103. The reversal of 20659094 is 49095602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49095602 = 2 ⋅24547801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5164772 + ... + 5164775.

It is an arithmetic number, because the mean of its divisors is an integer number (7747161).

Almost surely, 2^20659094 is an apocalyptic number.

20659094 is a deficient number, since it is larger than the sum of its proper divisors (10329550).

20659094 is a wasteful number, since it uses less digits than its factorization.

20659094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10329549.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 20659094 is about 4545.2276070622. The cubic root of 20659094 is about 274.3913547328.

The spelling of 20659094 in words is "twenty million, six hundred fifty-nine thousand, ninety-four".