33973313 has 4 divisors (see below), whose sum is σ = 37061808. Its totient is φ = 30884820.

The previous prime is 33973309. The next prime is 33973343. The reversal of 33973313 is 31337933.

It is a happy number.

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 not a de Polignac number, because 33973313 - 2² = 33973309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33973313.

It is not an unprimeable number, because it can be changed into a prime (33973343) 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, 1544231 + ... + 1544252.

It is an arithmetic number, because the mean of its divisors is an integer number (9265452).

Almost surely, 2^33973313 is an apocalyptic number.

It is an amenable number.

33973313 is a deficient number, since it is larger than the sum of its proper divisors (3088495).

33973313 is a wasteful number, since it uses less digits than its factorization.

33973313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088494.

The product of its digits is 15309, while the sum is 32.

The square root of 33973313 is about 5828.6630542518. The cubic root of 33973313 is about 323.8763976278.

The spelling of 33973313 in words is "thirty-three million, nine hundred seventy-three thousand, three hundred thirteen".