33123397 has 4 divisors (see below), whose sum is σ = 33495660. Its totient is φ = 32751136.

The previous prime is 33123379. The next prime is 33123401. The reversal of 33123397 is 79332133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79332133 = 593 ⋅133781.

It can be written as a sum of positive squares in 2 ways, for example, as 2719201 + 30404196 = 1649^2 + 5514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33123397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33123697) 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, 185998 + ... + 186175.

It is an arithmetic number, because the mean of its divisors is an integer number (8373915).

Almost surely, 2^33123397 is an apocalyptic number.

It is an amenable number.

33123397 is a deficient number, since it is larger than the sum of its proper divisors (372263).

33123397 is an equidigital number, since it uses as much as digits as its factorization.

33123397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372262.

The product of its digits is 10206, while the sum is 31.

The square root of 33123397 is about 5755.2929551848. The cubic root of 33123397 is about 321.1527338048.

The spelling of 33123397 in words is "thirty-three million, one hundred twenty-three thousand, three hundred ninety-seven".