23013309 has 8 divisors (see below), whose sum is σ = 33473952. Its totient is φ = 13947440.

The previous prime is 23013307. The next prime is 23013329. The reversal of 23013309 is 90331032.

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 23013309 - 2¹ = 23013307 is a prime.

It is a super-2 number, since 2×23013309² = 1059224782258962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348654 + ... + 348719.

It is an arithmetic number, because the mean of its divisors is an integer number (4184244).

Almost surely, 2^23013309 is an apocalyptic number.

It is an amenable number.

23013309 is a deficient number, since it is larger than the sum of its proper divisors (10460643).

23013309 is a wasteful number, since it uses less digits than its factorization.

23013309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697387.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 23013309 is about 4797.2188818106. The cubic root of 23013309 is about 284.4415410685.

The spelling of 23013309 in words is "twenty-three million, thirteen thousand, three hundred nine".