73228857 has 16 divisors (see below), whose sum is σ = 108776640. Its totient is φ = 43509312.

The previous prime is 73228817. The next prime is 73228873. The reversal of 73228857 is 75882237.

It is not a de Polignac number, because 73228857 - 2¹¹ = 73226809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73228817) 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 15 ways as a sum of consecutive naturals, for example, 31243 + ... + 33504.

It is an arithmetic number, because the mean of its divisors is an integer number (6798540).

Almost surely, 2^73228857 is an apocalyptic number.

It is an amenable number.

73228857 is a deficient number, since it is larger than the sum of its proper divisors (35547783).

73228857 is a wasteful number, since it uses less digits than its factorization.

73228857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64792.

The product of its digits is 188160, while the sum is 42.

The square root of 73228857 is about 8557.3861079187. The cubic root of 73228857 is about 418.3702087919.

The spelling of 73228857 in words is "seventy-three million, two hundred twenty-eight thousand, eight hundred fifty-seven".