33972493 has 4 divisors (see below), whose sum is σ = 34695360. Its totient is φ = 33249628.

The previous prime is 33972487. The next prime is 33972503. The reversal of 33972493 is 39427933.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33972493 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33972413) 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, 361363 + ... + 361456.

It is an arithmetic number, because the mean of its divisors is an integer number (8673840).

Almost surely, 2^33972493 is an apocalyptic number.

It is an amenable number.

33972493 is a deficient number, since it is larger than the sum of its proper divisors (722867).

33972493 is an equidigital number, since it uses as much as digits as its factorization.

33972493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722866.

The product of its digits is 122472, while the sum is 40.

The square root of 33972493 is about 5828.5927117959. The cubic root of 33972493 is about 323.8737918493.

The spelling of 33972493 in words is "thirty-three million, nine hundred seventy-two thousand, four hundred ninety-three".