20693622 has 16 divisors (see below), whose sum is σ = 43565760. Its totient is φ = 6534792.

The previous prime is 20693609. The next prime is 20693639. The reversal of 20693622 is 22639602.

It is a self number, because there is not a number n which added to its sum of digits gives 20693622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90648 + ... + 90875.

It is an arithmetic number, because the mean of its divisors is an integer number (2722860).

Almost surely, 2^20693622 is an apocalyptic number.

20693622 is an abundant number, since it is smaller than the sum of its proper divisors (22872138).

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

20693622 is a wasteful number, since it uses less digits than its factorization.

20693622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181547.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 20693622 is about 4549.0242909881. The cubic root of 20693622 is about 274.5441350927.

The spelling of 20693622 in words is "twenty million, six hundred ninety-three thousand, six hundred twenty-two".