72628333 has 4 divisors (see below), whose sum is σ = 74317408. Its totient is φ = 70939260.

The previous prime is 72628327. The next prime is 72628337. The reversal of 72628333 is 33382627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33382627 = 151 ⋅221077.

It is a cyclic number.

It is not a de Polignac number, because 72628333 - 2¹⁷ = 72497261 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 (72628337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844473 + ... + 844558.

It is an arithmetic number, because the mean of its divisors is an integer number (18579352).

Almost surely, 2^72628333 is an apocalyptic number.

It is an amenable number.

72628333 is a deficient number, since it is larger than the sum of its proper divisors (1689075).

72628333 is a wasteful number, since it uses less digits than its factorization.

72628333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689074.

The product of its digits is 36288, while the sum is 34.

The square root of 72628333 is about 8522.2258242785. The cubic root of 72628333 is about 417.2234328338.

The spelling of 72628333 in words is "seventy-two million, six hundred twenty-eight thousand, three hundred thirty-three".