23089397 has 4 divisors (see below), whose sum is σ = 23525100. Its totient is φ = 22653696.

The previous prime is 23089393. The next prime is 23089399. The reversal of 23089397 is 79398032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21215236 + 1874161 = 4606^2 + 1369^2 .

It is a cyclic number.

It is not a de Polignac number, because 23089397 - 2² = 23089393 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 (23089393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217772 + ... + 217877.

It is an arithmetic number, because the mean of its divisors is an integer number (5881275).

Almost surely, 2^23089397 is an apocalyptic number.

It is an amenable number.

23089397 is a deficient number, since it is larger than the sum of its proper divisors (435703).

23089397 is an equidigital number, since it uses as much as digits as its factorization.

23089397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435702.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 23089397 is about 4805.1427658291. The cubic root of 23089397 is about 284.7546755201.

The spelling of 23089397 in words is "twenty-three million, eighty-nine thousand, three hundred ninety-seven".