33997118 has 16 divisors (see below), whose sum is σ = 54991440. Its totient is φ = 15710400.

The previous prime is 33997091. The next prime is 33997123. The reversal of 33997118 is 81179933.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9353 + ... + 12468.

It is an arithmetic number, because the mean of its divisors is an integer number (3436965).

Almost surely, 2^33997118 is an apocalyptic number.

33997118 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

33997118 is a deficient number, since it is larger than the sum of its proper divisors (20994322).

33997118 is a wasteful number, since it uses less digits than its factorization.

33997118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21883.

The product of its digits is 40824, while the sum is 41.

The square root of 33997118 is about 5830.7047601469. The cubic root of 33997118 is about 323.9520263777.

The spelling of 33997118 in words is "thirty-three million, nine hundred ninety-seven thousand, one hundred eighteen".