2321387 has 4 divisors (see below), whose sum is σ = 2347560. Its totient is φ = 2295216.

The previous prime is 2321383. The next prime is 2321393. The reversal of 2321387 is 7831232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2321387 - 2² = 2321383 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2321381) 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, 12953 + ... + 13130.

It is an arithmetic number, because the mean of its divisors is an integer number (586890).

2^2321387 is an apocalyptic number.

2321387 is a deficient number, since it is larger than the sum of its proper divisors (26173).

2321387 is an equidigital number, since it uses as much as digits as its factorization.

2321387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26172.

The product of its digits is 2016, while the sum is 26.

The square root of 2321387 is about 1523.6098581986. The cubic root of 2321387 is about 132.4084950267.

The spelling of 2321387 in words is "two million, three hundred twenty-one thousand, three hundred eighty-seven".