4005017 has 4 divisors (see below), whose sum is σ = 4018980. Its totient is φ = 3991056.

The previous prime is 4004989. The next prime is 4005019. The reversal of 4005017 is 7105004.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3463321 + 541696 = 1861^2 + 736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4005017 is a prime.

It is a super-2 number, since 2×4005017² = 32080322340578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4004986 and 4005004.

It is not an unprimeable number, because it can be changed into a prime (4005019) 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, 6542 + ... + 7127.

It is an arithmetic number, because the mean of its divisors is an integer number (1004745).

Almost surely, 2^4005017 is an apocalyptic number.

It is an amenable number.

4005017 is a deficient number, since it is larger than the sum of its proper divisors (13963).

4005017 is a wasteful number, since it uses less digits than its factorization.

4005017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 4005017 is about 2001.2538569607. The cubic root of 4005017 is about 158.8064440617.

The spelling of 4005017 in words is "four million, five thousand, seventeen".