20937772 has 24 divisors (see below), whose sum is σ = 39818240. Its totient is φ = 9596880.

The previous prime is 20937767. The next prime is 20937773. The reversal of 20937772 is 27773902.

It is not an unprimeable number, because it can be changed into a prime (20937773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088 + ... + 6799.

Almost surely, 2^20937772 is an apocalyptic number.

It is an amenable number.

20937772 is a deficient number, since it is larger than the sum of its proper divisors (18880468).

20937772 is a wasteful number, since it uses less digits than its factorization.

20937772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8941 (or 8939 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 20937772 is about 4575.7810262293. The cubic root of 20937772 is about 275.6196363811.

The spelling of 20937772 in words is "twenty million, nine hundred thirty-seven thousand, seven hundred seventy-two".