34197818 has 8 divisors (see below), whose sum is σ = 51366420. Its totient is φ = 17075680.

The previous prime is 34197817. The next prime is 34197827. The reversal of 34197818 is 81879143.

It can be written as a sum of positive squares in 2 ways, for example, as 32410249 + 1787569 = 5693^2 + 1337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×34197818² = 2338981511922248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34197817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9713 + ... + 12756.

Almost surely, 2^34197818 is an apocalyptic number.

34197818 is a deficient number, since it is larger than the sum of its proper divisors (17168602).

34197818 is a wasteful number, since it uses less digits than its factorization.

34197818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23232.

The product of its digits is 48384, while the sum is 41.

The square root of 34197818 is about 5847.8900468460. The cubic root of 34197818 is about 324.5882533266.

The spelling of 34197818 in words is "thirty-four million, one hundred ninety-seven thousand, eight hundred eighteen".