33968745 has 12 divisors (see below), whose sum is σ = 58879236. Its totient is φ = 18116640.

The previous prime is 33968729. The next prime is 33968747. The reversal of 33968745 is 54786933.

It can be written as a sum of positive squares in 2 ways, for example, as 16353936 + 17614809 = 4044^2 + 4197^2 .

It is not a de Polignac number, because 33968745 - 2⁴ = 33968729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 754861 = 33968745 / (3 + 3 + 9 + 6 + 8 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 33968745.

It is not an unprimeable number, because it can be changed into a prime (33968747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377386 + ... + 377475.

It is an arithmetic number, because the mean of its divisors is an integer number (4906603).

Almost surely, 2^33968745 is an apocalyptic number.

It is an amenable number.

33968745 is a deficient number, since it is larger than the sum of its proper divisors (24910491).

33968745 is a wasteful number, since it uses less digits than its factorization.

33968745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754872 (or 754869 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 33968745 is about 5828.2711844937. The cubic root of 33968745 is about 323.8618810011.

The spelling of 33968745 in words is "thirty-three million, nine hundred sixty-eight thousand, seven hundred forty-five".