72281883 has 8 divisors (see below), whose sum is σ = 96443200. Its totient is φ = 48154248.

The previous prime is 72281873. The next prime is 72281887. The reversal of 72281883 is 38818227.

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

It is not a de Polignac number, because 72281883 - 2⁹ = 72281371 is a prime.

It is a super-2 number, since 2×72281883² = 10449341220051378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72281887) 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, 2893 + ... + 12366.

It is an arithmetic number, because the mean of its divisors is an integer number (12055400).

Almost surely, 2^72281883 is an apocalyptic number.

72281883 is a deficient number, since it is larger than the sum of its proper divisors (24161317).

72281883 is a wasteful number, since it uses less digits than its factorization.

72281883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16841.

The product of its digits is 43008, while the sum is 39.

The square root of 72281883 is about 8501.8752637286. The cubic root of 72281883 is about 416.5589653012.

The spelling of 72281883 in words is "seventy-two million, two hundred eighty-one thousand, eight hundred eighty-three".