81033463 has 8 divisors (see below), whose sum is σ = 92672000. Its totient is φ = 69410520.

The previous prime is 81033451. The next prime is 81033467. The reversal of 81033463 is 36433018.

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

It is a cyclic number.

It is not a de Polignac number, because 81033463 - 2⁹ = 81032951 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 (81033467) 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, 11098 + ... + 16888.

It is an arithmetic number, because the mean of its divisors is an integer number (11584000).

Almost surely, 2^81033463 is an apocalyptic number.

81033463 is a deficient number, since it is larger than the sum of its proper divisors (11638537).

81033463 is a wasteful number, since it uses less digits than its factorization.

81033463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 81033463 is about 9001.8588635903. The cubic root of 81033463 is about 432.7344456019.

The spelling of 81033463 in words is "eighty-one million, thirty-three thousand, four hundred sixty-three".