32397823 has 4 divisors (see below), whose sum is σ = 33806448. Its totient is φ = 30989200.

The previous prime is 32397773. The next prime is 32397851. The reversal of 32397823 is 32879323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32879323 = 2339 ⋅14057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32397823 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 (32397863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704278 + ... + 704323.

It is an arithmetic number, because the mean of its divisors is an integer number (8451612).

Almost surely, 2^32397823 is an apocalyptic number.

32397823 is a deficient number, since it is larger than the sum of its proper divisors (1408625).

32397823 is a wasteful number, since it uses less digits than its factorization.

32397823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408624.

The product of its digits is 54432, while the sum is 37.

The square root of 32397823 is about 5691.9085551333. The cubic root of 32397823 is about 318.7904304476.

It can be divided in two parts, 3239782 and 3, that added together give a triangular number (3239785 = T₂₅₄₅).

The spelling of 32397823 in words is "thirty-two million, three hundred ninety-seven thousand, eight hundred twenty-three".