73899 has 32 divisors (see below), whose sum is σ = 138240. Its totient is φ = 38016.

The previous prime is 73897. The next prime is 73907. The reversal of 73899 is 99837.

It is not a de Polignac number, because 73899 - 2¹ = 73897 is a prime.

It is a super-2 number, since 2×73899² = 10922124402, which contains 22 as substring.

Its product of digits (13608) is a multiple of the sum of its prime factors (56).

73899 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (73897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3202 + ... + 3224.

It is an arithmetic number, because the mean of its divisors is an integer number (4320).

2⁷³⁸⁹⁹ is an apocalyptic number.

73899 is a deficient number, since it is larger than the sum of its proper divisors (64341).

73899 is a wasteful number, since it uses less digits than its factorization.

73899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56 (or 50 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 73899 is about 271.8437050954. The cubic root of 73899 is about 41.9642553019.

The spelling of 73899 in words is "seventy-three thousand, eight hundred ninety-nine".