22702661 has 4 divisors (see below), whose sum is σ = 22722252. Its totient is φ = 22683072.

The previous prime is 22702657. The next prime is 22702697. The reversal of 22702661 is 16620722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16620722 = 2 ⋅8310361.

It can be written as a sum of positive squares in 2 ways, for example, as 7344100 + 15358561 = 2710^2 + 3919^2 .

It is a cyclic number.

It is not a de Polignac number, because 22702661 - 2² = 22702657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22702661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22702601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7940 + ... + 10413.

It is an arithmetic number, because the mean of its divisors is an integer number (5680563).

Almost surely, 2^22702661 is an apocalyptic number.

It is an amenable number.

22702661 is a deficient number, since it is larger than the sum of its proper divisors (19591).

22702661 is a wasteful number, since it uses less digits than its factorization.

22702661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19590.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 22702661 is about 4764.7309472834. The cubic root of 22702661 is about 283.1558822731.

The spelling of 22702661 in words is "twenty-two million, seven hundred two thousand, six hundred sixty-one".