4042987 has 12 divisors (see below), whose sum is σ = 4479840. Its totient is φ = 3645408.

The previous prime is 4042979. The next prime is 4042993. The reversal of 4042987 is 7892404.

It is a happy number.

It is not a de Polignac number, because 4042987 - 2³ = 4042979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7689 + ... + 8197.

It is an arithmetic number, because the mean of its divisors is an integer number (373320).

Almost surely, 2^4042987 is an apocalyptic number.

4042987 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

4042987 is a deficient number, since it is larger than the sum of its proper divisors (436853).

4042987 is a wasteful number, since it uses less digits than its factorization.

4042987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 569 counting only the distinct ones).

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

The square root of 4042987 is about 2010.7180309531. The cubic root of 4042987 is about 159.3067269794.

The spelling of 4042987 in words is "four million, forty-two thousand, nine hundred eighty-seven".