22771969 has 4 divisors (see below), whose sum is σ = 24842160. Its totient is φ = 20701780.

The previous prime is 22771939. The next prime is 22771979. The reversal of 22771969 is 96917722.

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 not a de Polignac number, because 22771969 - 2⁷ = 22771841 is a prime.

It is a super-2 number, since 2×22771969² = 1037125144273922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22771919) 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, 1035079 + ... + 1035100.

It is an arithmetic number, because the mean of its divisors is an integer number (6210540).

Almost surely, 2^22771969 is an apocalyptic number.

It is an amenable number.

22771969 is a deficient number, since it is larger than the sum of its proper divisors (2070191).

22771969 is a wasteful number, since it uses less digits than its factorization.

22771969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070190.

The product of its digits is 95256, while the sum is 43.

The square root of 22771969 is about 4771.9984283317. The cubic root of 22771969 is about 283.4437344467.

Subtracting 22771969 from its reverse (96917722), we obtain a triangular number (74145753 = T₁₂₁₇₇).

The spelling of 22771969 in words is "twenty-two million, seven hundred seventy-one thousand, nine hundred sixty-nine".