23348521 has 4 divisors (see below), whose sum is σ = 26684032. Its totient is φ = 20013012.

The previous prime is 23348513. The next prime is 23348537. The reversal of 23348521 is 12584332.

23348521 = 725² + 726² + ... + 766².

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 23348521 - 2³ = 23348513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23348521.

It is not an unprimeable number, because it can be changed into a prime (23348821) 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, 1667745 + ... + 1667758.

It is an arithmetic number, because the mean of its divisors is an integer number (6671008).

Almost surely, 2^23348521 is an apocalyptic number.

It is an amenable number.

23348521 is a deficient number, since it is larger than the sum of its proper divisors (3335511).

23348521 is an equidigital number, since it uses as much as digits as its factorization.

23348521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335510.

The product of its digits is 5760, while the sum is 28.

The square root of 23348521 is about 4832.0307325182. The cubic root of 23348521 is about 285.8159483817.

The spelling of 23348521 in words is "twenty-three million, three hundred forty-eight thousand, five hundred twenty-one".