81846233 has 8 divisors (see below), whose sum is σ = 93669120. Its totient is φ = 70056000.

The previous prime is 81846229. The next prime is 81846241. The reversal of 81846233 is 33264818.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 81846233 - 2² = 81846229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 81846193 and 81846202.

It is not an unprimeable number, because it can be changed into a prime (81846253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2528 + ... + 13041.

It is an arithmetic number, because the mean of its divisors is an integer number (11708640).

Almost surely, 2^81846233 is an apocalyptic number.

It is an amenable number.

81846233 is a deficient number, since it is larger than the sum of its proper divisors (11822887).

81846233 is a wasteful number, since it uses less digits than its factorization.

81846233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16327.

The product of its digits is 27648, while the sum is 35.

The square root of 81846233 is about 9046.8907918688. The cubic root of 81846233 is about 434.1764185403.

The spelling of 81846233 in words is "eighty-one million, eight hundred forty-six thousand, two hundred thirty-three".