2387345 has 4 divisors (see below), whose sum is σ = 2864820. Its totient is φ = 1909872.

The previous prime is 2387311. The next prime is 2387347. The reversal of 2387345 is 5437832.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1803649 + 583696 = 1343^2 + 764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2387345 is a prime.

It is a super-2 number, since 2×2387345² = 11398832298050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2387347) 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, 238730 + ... + 238739.

It is an arithmetic number, because the mean of its divisors is an integer number (716205).

2^2387345 is an apocalyptic number.

It is an amenable number.

2387345 is a deficient number, since it is larger than the sum of its proper divisors (477475).

2387345 is an equidigital number, since it uses as much as digits as its factorization.

2387345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477474.

The product of its digits is 20160, while the sum is 32.

The square root of 2387345 is about 1545.1035564000. The cubic root of 2387345 is about 133.6508509081.

The spelling of 2387345 in words is "two million, three hundred eighty-seven thousand, three hundred forty-five".