2390787 has 24 divisors (see below), whose sum is σ = 3989856. Its totient is φ = 1351296.

The previous prime is 2390779. The next prime is 2390797. The reversal of 2390787 is 7870932.

It is not a de Polignac number, because 2390787 - 2³ = 2390779 is a prime.

2390787 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2390737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8493 + ... + 8769.

It is an arithmetic number, because the mean of its divisors is an integer number (166244).

2^2390787 is an apocalyptic number.

2390787 is a deficient number, since it is larger than the sum of its proper divisors (1599069).

2390787 is a wasteful number, since it uses less digits than its factorization.

2390787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2390787 is about 1546.2169964142. The cubic root of 2390787 is about 133.7150512816.

The spelling of 2390787 in words is "two million, three hundred ninety thousand, seven hundred eighty-seven".