73681875 has 30 divisors (see below), whose sum is σ = 133004300. Its totient is φ = 39294000.

The previous prime is 73681873. The next prime is 73681897. The reversal of 73681875 is 57818637.

It is not a de Polignac number, because 73681875 - 2¹ = 73681873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 73681875.

It is not an unprimeable number, because it can be changed into a prime (73681871) 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 29 ways as a sum of consecutive naturals, for example, 925 + ... + 12174.

Almost surely, 2^73681875 is an apocalyptic number.

73681875 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

73681875 is a deficient number, since it is larger than the sum of its proper divisors (59322425).

73681875 is a wasteful number, since it uses less digits than its factorization.

73681875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13125 (or 13107 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 73681875 is about 8583.8147114206. The cubic root of 73681875 is about 419.2311614749.

The spelling of 73681875 in words is "seventy-three million, six hundred eighty-one thousand, eight hundred seventy-five".