4003487 has 4 divisors (see below), whose sum is σ = 4048560. Its totient is φ = 3958416.

The previous prime is 4003459. The next prime is 4003501. The reversal of 4003487 is 7843004.

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

It is a cyclic number.

It is not a de Polignac number, because 4003487 - 2⁶ = 4003423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003427) 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, 22403 + ... + 22580.

It is an arithmetic number, because the mean of its divisors is an integer number (1012140).

Almost surely, 2^4003487 is an apocalyptic number.

4003487 is a deficient number, since it is larger than the sum of its proper divisors (45073).

4003487 is an equidigital number, since it uses as much as digits as its factorization.

4003487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45072.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 4003487 is about 2000.8715600957. The cubic root of 4003487 is about 158.7862190284.

The spelling of 4003487 in words is "four million, three thousand, four hundred eighty-seven".