23001729 has 4 divisors (see below), whose sum is σ = 30668976. Its totient is φ = 15334484.

The previous prime is 23001709. The next prime is 23001733. The reversal of 23001729 is 92710032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23001729 - 2¹⁵ = 22968961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23001699 and 23001708.

It is not an unprimeable number, because it can be changed into a prime (23001709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3833619 + ... + 3833624.

It is an arithmetic number, because the mean of its divisors is an integer number (7667244).

Almost surely, 2^23001729 is an apocalyptic number.

It is an amenable number.

23001729 is a deficient number, since it is larger than the sum of its proper divisors (7667247).

23001729 is an equidigital number, since it uses as much as digits as its factorization.

23001729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7667246.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 23001729 is about 4796.0117806361. The cubic root of 23001729 is about 284.3938239602.

The spelling of 23001729 in words is "twenty-three million, one thousand, seven hundred twenty-nine".