4001617 has 2 divisors, whose sum is σ = 4001618. Its totient is φ = 4001616.

The previous prime is 4001611. The next prime is 4001629. The reversal of 4001617 is 7161004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2692881 + 1308736 = 1641^2 + 1144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4001617 is a prime.

It is a super-2 number, since 2×4001617² = 32025877229378, which contains 22 as substring.

4001617 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4001594 and 4001603.

It is not a weakly prime, because it can be changed into another prime (4001611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000808 + 2000809.

It is an arithmetic number, because the mean of its divisors is an integer number (2000809).

Almost surely, 2^4001617 is an apocalyptic number.

It is an amenable number.

4001617 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001617 is an equidigital number, since it uses as much as digits as its factorization.

4001617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 4001617 is about 2000.4042091537. The cubic root of 4001617 is about 158.7614925443.

The spelling of 4001617 in words is "four million, one thousand, six hundred seventeen".