23038729 has 8 divisors (see below), whose sum is σ = 26827200. Its totient is φ = 19374576.

The previous prime is 23038711. The next prime is 23038759. The reversal of 23038729 is 92783032.

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 23038729 - 2¹³ = 23030537 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23038694 and 23038703.

It is not an unprimeable number, because it can be changed into a prime (23038759) 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, 30679 + ... + 31420.

It is an arithmetic number, because the mean of its divisors is an integer number (3353400).

Almost surely, 2^23038729 is an apocalyptic number.

It is an amenable number.

23038729 is a deficient number, since it is larger than the sum of its proper divisors (3788471).

23038729 is an equidigital number, since it uses as much as digits as its factorization.

23038729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62159.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 23038729 is about 4799.8676023407. The cubic root of 23038729 is about 284.5462318424.

The spelling of 23038729 in words is "twenty-three million, thirty-eight thousand, seven hundred twenty-nine".