33961841 has 2 divisors, whose sum is σ = 33961842. Its totient is φ = 33961840.

The previous prime is 33961799. The next prime is 33961843. The reversal of 33961841 is 14816933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33466225 + 495616 = 5785^2 + 704^2 .

It is an emirp because it is prime and its reverse (14816933) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33961841 - 2²² = 29767537 is a prime.

Together with 33961843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33961843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16980920 + 16980921.

It is an arithmetic number, because the mean of its divisors is an integer number (16980921).

Almost surely, 2^33961841 is an apocalyptic number.

It is an amenable number.

33961841 is a deficient number, since it is larger than the sum of its proper divisors (1).

33961841 is an equidigital number, since it uses as much as digits as its factorization.

33961841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 33961841 is about 5827.6788689838. The cubic root of 33961841 is about 323.8399383406.

The spelling of 33961841 in words is "thirty-three million, nine hundred sixty-one thousand, eight hundred forty-one".