33979903 has 2 divisors, whose sum is σ = 33979904. Its totient is φ = 33979902.

The previous prime is 33979879. The next prime is 33979963. The reversal of 33979903 is 30997933.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30997933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33979903 - 2²⁵ = 425471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33979903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33979963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16989951 + 16989952.

It is an arithmetic number, because the mean of its divisors is an integer number (16989952).

Almost surely, 2^33979903 is an apocalyptic number.

33979903 is a deficient number, since it is larger than the sum of its proper divisors (1).

33979903 is an equidigital number, since it uses as much as digits as its factorization.

33979903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137781, while the sum is 43.

The square root of 33979903 is about 5829.2283365811. The cubic root of 33979903 is about 323.8973376665.

The spelling of 33979903 in words is "thirty-three million, nine hundred seventy-nine thousand, nine hundred three".