72899 has 4 divisors (see below), whose sum is σ = 73440. Its totient is φ = 72360.

The previous prime is 72893. The next prime is 72901. The reversal of 72899 is 99827.

It is a Cunningham number, because it is equal to 270²-1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 72899 - 2⁴ = 72883 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (72893) 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, 134 + ... + 404.

It is an arithmetic number, because the mean of its divisors is an integer number (18360).

2⁷²⁸⁹⁹ is an apocalyptic number.

72899 is a deficient number, since it is larger than the sum of its proper divisors (541).

72899 is a wasteful number, since it uses less digits than its factorization.

72899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its digits is 9072, while the sum is 35.

The square root of 72899 is about 269.9981481418. The cubic root of 72899 is about 41.7741084898.

The spelling of 72899 in words is "seventy-two thousand, eight hundred ninety-nine".