2375721 has 12 divisors (see below), whose sum is σ = 3465072. Its totient is φ = 1568376.

The previous prime is 2375719. The next prime is 2375743. The reversal of 2375721 is 1275732.

It is not a de Polignac number, because 2375721 - 2¹ = 2375719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2375701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271 + ... + 2196.

It is an arithmetic number, because the mean of its divisors is an integer number (288756).

2^2375721 is an apocalyptic number.

It is an amenable number.

2375721 is a deficient number, since it is larger than the sum of its proper divisors (1089351).

2375721 is a wasteful number, since it uses less digits than its factorization.

2375721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580 (or 2577 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 2375721 is about 1541.3374062807. The cubic root of 2375721 is about 133.4335822462.

The spelling of 2375721 in words is "two million, three hundred seventy-five thousand, seven hundred twenty-one".