4090987 has 8 divisors (see below), whose sum is σ = 4322304. Its totient is φ = 3864168.

The previous prime is 4090973. The next prime is 4090991. The reversal of 4090987 is 7890904.

It is a happy number.

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 4090987 - 2⁷ = 4090859 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (4090907) 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, 838 + ... + 2980.

It is an arithmetic number, because the mean of its divisors is an integer number (540288).

Almost surely, 2^4090987 is an apocalyptic number.

4090987 is a deficient number, since it is larger than the sum of its proper divisors (231317).

4090987 is a wasteful number, since it uses less digits than its factorization.

4090987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 4090987 is about 2022.6188469408. The cubic root of 4090987 is about 159.9346999155.

The spelling of 4090987 in words is "four million, ninety thousand, nine hundred eighty-seven".