22071669 has 4 divisors (see below), whose sum is σ = 29428896. Its totient is φ = 14714444.

The previous prime is 22071649. The next prime is 22071677. The reversal of 22071669 is 96617022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22071669 - 2⁹ = 22071157 is a prime.

It is a super-2 number, since 2×22071669² = 974317144891122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22071619) 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, 3678609 + ... + 3678614.

It is an arithmetic number, because the mean of its divisors is an integer number (7357224).

Almost surely, 2^22071669 is an apocalyptic number.

It is an amenable number.

22071669 is a deficient number, since it is larger than the sum of its proper divisors (7357227).

22071669 is an equidigital number, since it uses as much as digits as its factorization.

22071669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7357226.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 22071669 is about 4698.0494888837. The cubic root of 22071669 is about 280.5078750081.

The spelling of 22071669 in words is "twenty-two million, seventy-one thousand, six hundred sixty-nine".