34001666 has 16 divisors (see below), whose sum is σ = 54174744. Its totient is φ = 15949824.

The previous prime is 34001663. The next prime is 34001677. The reversal of 34001666 is 66610043.

It can be written as a sum of positive squares in 4 ways, for example, as 30085225 + 3916441 = 5485^2 + 1979^2 .

It is a super-3 number, since 3×34001666³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (34001663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10586 + ... + 13418.

Almost surely, 2^34001666 is an apocalyptic number.

34001666 is a deficient number, since it is larger than the sum of its proper divisors (20173078).

34001666 is a wasteful number, since it uses less digits than its factorization.

34001666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 34001666 is about 5831.0947514168. The cubic root of 34001666 is about 323.9664714073.

It can be divided in two parts, 3400 and 1666, that multiplied together give a square (5664400 = 2380²).

The spelling of 34001666 in words is "thirty-four million, one thousand, six hundred sixty-six".