33945953 has 4 divisors (see below), whose sum is σ = 35421888. Its totient is φ = 32470020.

The previous prime is 33945943. The next prime is 33945959. The reversal of 33945953 is 35954933.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 33945953 - 2⁸ = 33945697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33945953.

It is not an unprimeable number, because it can be changed into a prime (33945959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737933 + ... + 737978.

It is an arithmetic number, because the mean of its divisors is an integer number (8855472).

Almost surely, 2^33945953 is an apocalyptic number.

It is an amenable number.

33945953 is a deficient number, since it is larger than the sum of its proper divisors (1475935).

33945953 is a wasteful number, since it uses less digits than its factorization.

33945953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475934.

The product of its digits is 218700, while the sum is 41.

The square root of 33945953 is about 5826.3155595968. The cubic root of 33945953 is about 323.7894309541.

The spelling of 33945953 in words is "thirty-three million, nine hundred forty-five thousand, nine hundred fifty-three".