23400091 has 8 divisors (see below), whose sum is σ = 27491184. Its totient is φ = 19636320.

The previous prime is 23400089. The next prime is 23400103. The reversal of 23400091 is 19000432.

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

It is not a de Polignac number, because 23400091 - 2¹ = 23400089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23406091) 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, 81676 + ... + 81961.

It is an arithmetic number, because the mean of its divisors is an integer number (3436398).

Almost surely, 2^23400091 is an apocalyptic number.

23400091 is a deficient number, since it is larger than the sum of its proper divisors (4091093).

23400091 is a wasteful number, since it uses less digits than its factorization.

23400091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163661.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 23400091 is about 4837.3640549374. The cubic root of 23400091 is about 286.0262213721.

The spelling of 23400091 in words is "twenty-three million, four hundred thousand, ninety-one".