34991666 has 4 divisors (see below), whose sum is σ = 52487502. Its totient is φ = 17495832.

The previous prime is 34991647. The next prime is 34991669. The reversal of 34991666 is 66619943.

34991666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 34562641 + 429025 = 5879^2 + 655^2 .

It is not an unprimeable number, because it can be changed into a prime (34991669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8747915 + ... + 8747918.

Almost surely, 2^34991666 is an apocalyptic number.

34991666 is a deficient number, since it is larger than the sum of its proper divisors (17495836).

34991666 is a wasteful number, since it uses less digits than its factorization.

34991666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17495835.

The product of its digits is 209952, while the sum is 44.

The square root of 34991666 is about 5915.3753896097. The cubic root of 34991666 is about 327.0806660373.

The spelling of 34991666 in words is "thirty-four million, nine hundred ninety-one thousand, six hundred sixty-six".