23091429 has 16 divisors (see below), whose sum is σ = 31599360. Its totient is φ = 14992320.

The previous prime is 23091413. The next prime is 23091451. The reversal of 23091429 is 92419032.

It is not a de Polignac number, because 23091429 - 2⁴ = 23091413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23091396 and 23091405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23091499) 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 15 ways as a sum of consecutive naturals, for example, 54639 + ... + 55059.

It is an arithmetic number, because the mean of its divisors is an integer number (1974960).

Almost surely, 2^23091429 is an apocalyptic number.

It is an amenable number.

23091429 is a deficient number, since it is larger than the sum of its proper divisors (8507931).

23091429 is a wasteful number, since it uses less digits than its factorization.

23091429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 23091429 is about 4805.3542013050. The cubic root of 23091429 is about 284.7630286259.

The spelling of 23091429 in words is "twenty-three million, ninety-one thousand, four hundred twenty-nine".