4087904 has 12 divisors (see below), whose sum is σ = 8048124. Its totient is φ = 2043936.

The previous prime is 4087901. The next prime is 4087913. The reversal of 4087904 is 4097804.

It is a happy number.

It is a super-2 number, since 2×4087904² = 33421918226432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 127747 = 4087904 / (4 + 0 + 8 + 7 + 9 + 0 + 4).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4087901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63842 + ... + 63905.

It is an arithmetic number, because the mean of its divisors is an integer number (670677).

Almost surely, 2^4087904 is an apocalyptic number.

It is an amenable number.

4087904 is a deficient number, since it is larger than the sum of its proper divisors (3960220).

4087904 is a wasteful number, since it uses less digits than its factorization.

4087904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127757 (or 127749 counting only the distinct ones).

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

The square root of 4087904 is about 2021.8565725590. The cubic root of 4087904 is about 159.8945138028.

The spelling of 4087904 in words is "four million, eighty-seven thousand, nine hundred four".