2422987 has 4 divisors (see below), whose sum is σ = 2769136. Its totient is φ = 2076840.

The previous prime is 2422969. The next prime is 2422997. The reversal of 2422987 is 7892242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2422987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2422907) 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, 173064 + ... + 173077.

It is an arithmetic number, because the mean of its divisors is an integer number (692284).

2^2422987 is an apocalyptic number.

2422987 is a deficient number, since it is larger than the sum of its proper divisors (346149).

2422987 is an equidigital number, since it uses as much as digits as its factorization.

2422987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346148.

The product of its digits is 16128, while the sum is 34.

The square root of 2422987 is about 1556.5946807053. The cubic root of 2422987 is about 134.3126840676.

The spelling of 2422987 in words is "two million, four hundred twenty-two thousand, nine hundred eighty-seven".