4009487 has 4 divisors (see below), whose sum is σ = 4060320. Its totient is φ = 3958656.

The previous prime is 4009483. The next prime is 4009507. The reversal of 4009487 is 7849004.

It is a happy number.

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 4009487 - 2² = 4009483 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 (4009483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25298 + ... + 25455.

It is an arithmetic number, because the mean of its divisors is an integer number (1015080).

Almost surely, 2^4009487 is an apocalyptic number.

4009487 is a deficient number, since it is larger than the sum of its proper divisors (50833).

4009487 is an equidigital number, since it uses as much as digits as its factorization.

4009487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50832.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 4009487 is about 2002.3703453657. The cubic root of 4009487 is about 158.8655033928.

The spelling of 4009487 in words is "four million, nine thousand, four hundred eighty-seven".