71673233 has 4 divisors (see below), whose sum is σ = 72033600. Its totient is φ = 71312868.

The previous prime is 71673223. The next prime is 71673247. The reversal of 71673233 is 33237617.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33237617 = 7 ⋅4748231.

It is a cyclic number.

It is not a de Polignac number, because 71673233 - 2⁸ = 71672977 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 71673233.

It is not an unprimeable number, because it can be changed into a prime (71673223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179885 + ... + 180282.

It is an arithmetic number, because the mean of its divisors is an integer number (18008400).

Almost surely, 2^71673233 is an apocalyptic number.

It is an amenable number.

71673233 is a deficient number, since it is larger than the sum of its proper divisors (360367).

71673233 is a wasteful number, since it uses less digits than its factorization.

71673233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360366.

The product of its digits is 15876, while the sum is 32.

The square root of 71673233 is about 8466.0045476010. The cubic root of 71673233 is about 415.3864557101.

The spelling of 71673233 in words is "seventy-one million, six hundred seventy-three thousand, two hundred thirty-three".