22720707 has 12 divisors (see below), whose sum is σ = 32906640. Its totient is φ = 15106608.

The previous prime is 22720679. The next prime is 22720741. The reversal of 22720707 is 70702722.

It is not a de Polignac number, because 22720707 - 2¹¹ = 22718659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22720777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394 + ... + 6752.

It is an arithmetic number, because the mean of its divisors is an integer number (2742220).

Almost surely, 2^22720707 is an apocalyptic number.

22720707 is a deficient number, since it is larger than the sum of its proper divisors (10185933).

22720707 is a wasteful number, since it uses less digits than its factorization.

22720707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762 (or 6759 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 22720707 is about 4766.6242772008. The cubic root of 22720707 is about 283.2308878381.

The spelling of 22720707 in words is "twenty-two million, seven hundred twenty thousand, seven hundred seven".