71099 has 6 divisors (see below), whose sum is σ = 82764. Its totient is φ = 60900.

The previous prime is 71089. The next prime is 71119. The reversal of 71099 is 99017.

It is not a de Polignac number, because 71099 - 2⁸ = 70843 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (71039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 677 + ... + 774.

It is an arithmetic number, because the mean of its divisors is an integer number (13794).

2⁷¹⁰⁹⁹ is an apocalyptic number.

71099 is a deficient number, since it is larger than the sum of its proper divisors (11665).

71099 is a wasteful number, since it uses less digits than its factorization.

71099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 71099 is about 266.6439573664. The cubic root of 71099 is about 41.4274146101.

The spelling of 71099 in words is "seventy-one thousand, ninety-nine".