4240987 has 4 divisors (see below), whose sum is σ = 4269600. Its totient is φ = 4212376.

The previous prime is 4240981. The next prime is 4240991. The reversal of 4240987 is 7890424.

It is a happy number.

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-4240987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4240981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14083 + ... + 14380.

It is an arithmetic number, because the mean of its divisors is an integer number (1067400).

Almost surely, 2^4240987 is an apocalyptic number.

4240987 is a deficient number, since it is larger than the sum of its proper divisors (28613).

4240987 is a wasteful number, since it uses less digits than its factorization.

4240987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28612.

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

The square root of 4240987 is about 2059.3656790381. The cubic root of 4240987 is about 161.8660046283.

The spelling of 4240987 in words is "four million, two hundred forty thousand, nine hundred eighty-seven".