33022993 has 4 divisors (see below), whose sum is σ = 34965540. Its totient is φ = 31080448.

The previous prime is 33022973. The next prime is 33023017. The reversal of 33022993 is 39922033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39922033 = 683 ⋅58451.

It can be written as a sum of positive squares in 2 ways, for example, as 13601344 + 19421649 = 3688^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 33022993 - 2⁹ = 33022481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33022973) 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, 971248 + ... + 971281.

It is an arithmetic number, because the mean of its divisors is an integer number (8741385).

Almost surely, 2^33022993 is an apocalyptic number.

It is an amenable number.

33022993 is a deficient number, since it is larger than the sum of its proper divisors (1942547).

33022993 is a wasteful number, since it uses less digits than its factorization.

33022993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942546.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 33022993 is about 5746.5635818287. The cubic root of 33022993 is about 320.8279114992.

The spelling of 33022993 in words is "thirty-three million, twenty-two thousand, nine hundred ninety-three".