23387429 has 8 divisors (see below), whose sum is σ = 25224192. Its totient is φ = 21556080.

The previous prime is 23387417. The next prime is 23387437. The reversal of 23387429 is 92478332.

It is a happy number.

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

It is not a de Polignac number, because 23387429 - 2⁸ = 23387173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23387392 and 23387401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23387449) 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, 15164 + ... + 16634.

It is an arithmetic number, because the mean of its divisors is an integer number (3153024).

Almost surely, 2^23387429 is an apocalyptic number.

It is an amenable number.

23387429 is a deficient number, since it is larger than the sum of its proper divisors (1836763).

23387429 is a wasteful number, since it uses less digits than its factorization.

23387429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707.

The product of its digits is 72576, while the sum is 38.

The square root of 23387429 is about 4836.0551072129. The cubic root of 23387429 is about 285.9746216091.

The spelling of 23387429 in words is "twenty-three million, three hundred eighty-seven thousand, four hundred twenty-nine".