2445987 has 8 divisors (see below), whose sum is σ = 3298320. Its totient is φ = 1612160.

The previous prime is 2445979. The next prime is 2445991. The reversal of 2445987 is 7895442.

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 2445987 - 2³ = 2445979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2445907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4314 + ... + 4847.

It is an arithmetic number, because the mean of its divisors is an integer number (412290).

2^2445987 is an apocalyptic number.

2445987 is a deficient number, since it is larger than the sum of its proper divisors (852333).

2445987 is an equidigital number, since it uses as much as digits as its factorization.

2445987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9253.

The product of its digits is 80640, while the sum is 39.

The square root of 2445987 is about 1563.9651530645. The cubic root of 2445987 is about 134.7363303530.

The spelling of 2445987 in words is "two million, four hundred forty-five thousand, nine hundred eighty-seven".