2390665 has 8 divisors (see below), whose sum is σ = 2877120. Its totient is φ = 1906992.

The previous prime is 2390653. The next prime is 2390699. The reversal of 2390665 is 5660932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2390665 - 2¹³ = 2382473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866 + ... + 3604.

It is an arithmetic number, because the mean of its divisors is an integer number (359640).

2^2390665 is an apocalyptic number.

It is an amenable number.

2390665 is a deficient number, since it is larger than the sum of its proper divisors (486455).

2390665 is an equidigital number, since it uses as much as digits as its factorization.

2390665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2390665 is about 1546.1775447859. The cubic root of 2390665 is about 133.7127767846.

The spelling of 2390665 in words is "two million, three hundred ninety thousand, six hundred sixty-five".