33949943 has 4 divisors (see below), whose sum is σ = 33964560. Its totient is φ = 33935328.

The previous prime is 33949939. The next prime is 33949961. The reversal of 33949943 is 34994933.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34994933 = 37 ⋅945809.

It is a cyclic number.

It is not a de Polignac number, because 33949943 - 2² = 33949939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33949894 and 33949903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33949913) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2963 + ... + 8756.

It is an arithmetic number, because the mean of its divisors is an integer number (8491140).

Almost surely, 2^33949943 is an apocalyptic number.

33949943 is a deficient number, since it is larger than the sum of its proper divisors (14617).

33949943 is a wasteful number, since it uses less digits than its factorization.

33949943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14616.

The product of its digits is 314928, while the sum is 44.

The square root of 33949943 is about 5826.6579614733. The cubic root of 33949943 is about 323.8021165037.

The spelling of 33949943 in words is "thirty-three million, nine hundred forty-nine thousand, nine hundred forty-three".