33485909 has 2 divisors, whose sum is σ = 33485910. Its totient is φ = 33485908.

The previous prime is 33485891. The next prime is 33485939. The reversal of 33485909 is 90958433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18447025 + 15038884 = 4295^2 + 3878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33485909 is a prime.

It is a super-2 number, since 2×33485909² = 2242612203112562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33485939) 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, 16742954 + 16742955.

It is an arithmetic number, because the mean of its divisors is an integer number (16742955).

Almost surely, 2^33485909 is an apocalyptic number.

It is an amenable number.

33485909 is a deficient number, since it is larger than the sum of its proper divisors (1).

33485909 is an equidigital number, since it uses as much as digits as its factorization.

33485909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 33485909 is about 5786.7010463648. The cubic root of 33485909 is about 322.3200815246.

The spelling of 33485909 in words is "thirty-three million, four hundred eighty-five thousand, nine hundred nine".