72866833 has 8 divisors (see below), whose sum is σ = 81003776. Its totient is φ = 65091600.

The previous prime is 72866831. The next prime is 72866839. The reversal of 72866833 is 33866827.

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 72866833 - 2¹ = 72866831 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 72866833.

It is not an unprimeable number, because it can be changed into a prime (72866831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90003 + ... + 90808.

It is an arithmetic number, because the mean of its divisors is an integer number (10125472).

Almost surely, 2^72866833 is an apocalyptic number.

It is an amenable number.

72866833 is a deficient number, since it is larger than the sum of its proper divisors (8136943).

72866833 is a wasteful number, since it uses less digits than its factorization.

72866833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180855.

The product of its digits is 290304, while the sum is 43.

The square root of 72866833 is about 8536.2071788353. The cubic root of 72866833 is about 417.6796325026.

The spelling of 72866833 in words is "seventy-two million, eight hundred sixty-six thousand, eight hundred thirty-three".