2307987 has 32 divisors (see below), whose sum is σ = 3936000. Its totient is φ = 1321920.

The previous prime is 2307983. The next prime is 2307989. The reversal of 2307987 is 7897032.

It is not a de Polignac number, because 2307987 - 2² = 2307983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2307983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5439 + ... + 5847.

It is an arithmetic number, because the mean of its divisors is an integer number (123000).

2^2307987 is an apocalyptic number.

2307987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2307987 is a deficient number, since it is larger than the sum of its proper divisors (1628013).

2307987 is a wasteful number, since it uses less digits than its factorization.

2307987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 442 counting only the distinct ones).

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

The square root of 2307987 is about 1519.2060426420. The cubic root of 2307987 is about 132.1532311449.

The spelling of 2307987 in words is "two million, three hundred seven thousand, nine hundred eighty-seven".