72233999 has 8 divisors (see below), whose sum is σ = 74661888. Its totient is φ = 69812280.

The previous prime is 72233957. The next prime is 72234017. The reversal of 72233999 is 99933227.

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 72233999 - 2¹² = 72229903 is a prime.

It is a super-2 number, since 2×72233999² = 10435501223064002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72233929) 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, 45314 + ... + 46880.

It is an arithmetic number, because the mean of its divisors is an integer number (9332736).

Almost surely, 2^72233999 is an apocalyptic number.

72233999 is a deficient number, since it is larger than the sum of its proper divisors (2427889).

72233999 is a wasteful number, since it uses less digits than its factorization.

72233999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085.

The product of its digits is 183708, while the sum is 44.

The square root of 72233999 is about 8499.0587125869. The cubic root of 72233999 is about 416.4669601546.

The spelling of 72233999 in words is "seventy-two million, two hundred thirty-three thousand, nine hundred ninety-nine".