2373521 has 4 divisors (see below), whose sum is σ = 2382192. Its totient is φ = 2364852.

The previous prime is 2373487. The next prime is 2373529. The reversal of 2373521 is 1253732.

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 a de Polignac number, because none of the positive numbers 2^k-2373521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2373529) 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, 3911 + ... + 4476.

It is an arithmetic number, because the mean of its divisors is an integer number (595548).

2^2373521 is an apocalyptic number.

It is an amenable number.

2373521 is a deficient number, since it is larger than the sum of its proper divisors (8671).

2373521 is an equidigital number, since it uses as much as digits as its factorization.

2373521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670.

The product of its digits is 1260, while the sum is 23.

The square root of 2373521 is about 1540.6235750501. The cubic root of 2373521 is about 133.3923814849.

The spelling of 2373521 in words is "two million, three hundred seventy-three thousand, five hundred twenty-one".