33854981 has 2 divisors, whose sum is σ = 33854982. Its totient is φ = 33854980.

The previous prime is 33854929. The next prime is 33854983. The reversal of 33854981 is 18945833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33166081 + 688900 = 5759^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 33854981 - 2⁶ = 33854917 is a prime.

It is a super-2 number, since 2×33854981² = 2292319477020722, which contains 22 as substring.

Together with 33854983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33854983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16927490 + 16927491.

It is an arithmetic number, because the mean of its divisors is an integer number (16927491).

Almost surely, 2^33854981 is an apocalyptic number.

It is an amenable number.

33854981 is a deficient number, since it is larger than the sum of its proper divisors (1).

33854981 is an equidigital number, since it uses as much as digits as its factorization.

33854981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 33854981 is about 5818.5033298951. The cubic root of 33854981 is about 323.4999303248.

The spelling of 33854981 in words is "thirty-three million, eight hundred fifty-four thousand, nine hundred eighty-one".