4087172 has 6 divisors (see below), whose sum is σ = 7152558. Its totient is φ = 2043584.

The previous prime is 4087163. The next prime is 4087177. The reversal of 4087172 is 2717804.

It can be written as a sum of positive squares in only one way, i.e., 4056196 + 30976 = 2014^2 + 176^2 .

It is not an unprimeable number, because it can be changed into a prime (4087177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510893 + ... + 510900.

It is an arithmetic number, because the mean of its divisors is an integer number (1192093).

Almost surely, 2^4087172 is an apocalyptic number.

It is an amenable number.

4087172 is a deficient number, since it is larger than the sum of its proper divisors (3065386).

4087172 is a wasteful number, since it uses less digits than its factorization.

4087172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021797 (or 1021795 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 4087172 is about 2021.6755427120. The cubic root of 4087172 is about 159.8849694029.

The spelling of 4087172 in words is "four million, eighty-seven thousand, one hundred seventy-two".