22997005 has 8 divisors (see below), whose sum is σ = 29219832. Its totient is φ = 17315328.

The previous prime is 22997003. The next prime is 22997021. The reversal of 22997005 is 50079922.

It can be written as a sum of positive squares in 4 ways, for example, as 3663396 + 19333609 = 1914^2 + 4397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22997005 - 2¹ = 22997003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22997003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135192 + ... + 135361.

It is an arithmetic number, because the mean of its divisors is an integer number (3652479).

Almost surely, 2^22997005 is an apocalyptic number.

It is an amenable number.

22997005 is a deficient number, since it is larger than the sum of its proper divisors (6222827).

22997005 is a wasteful number, since it uses less digits than its factorization.

22997005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270575.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 22997005 is about 4795.5192628119. The cubic root of 22997005 is about 284.3743534180.

The spelling of 22997005 in words is "twenty-two million, nine hundred ninety-seven thousand, five".