4087905 has 48 divisors (see below), whose sum is σ = 7426944. Its totient is φ = 1914880.

The previous prime is 4087901. The next prime is 4087913. The reversal of 4087905 is 5097804.

It is not a de Polignac number, because 4087905 - 2² = 4087901 is a prime.

4087905 is a lucky 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 in 47 ways as a sum of consecutive naturals, for example, 99685 + ... + 99725.

It is an arithmetic number, because the mean of its divisors is an integer number (154728).

Almost surely, 2^4087905 is an apocalyptic number.

It is an amenable number.

4087905 is a deficient number, since it is larger than the sum of its proper divisors (3339039).

4087905 is a wasteful number, since it uses less digits than its factorization.

4087905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 4087905 is about 2021.8568198564. The cubic root of 4087905 is about 159.8945268408.

The spelling of 4087905 in words is "four million, eighty-seven thousand, nine hundred five".