71902 has 4 divisors (see below), whose sum is σ = 107856. Its totient is φ = 35950.

The previous prime is 71899. The next prime is 71909. The reversal of 71902 is 20917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20917 = 13 ⋅1609.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 71902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17974 + ... + 17977.

It is an arithmetic number, because the mean of its divisors is an integer number (26964).

2⁷¹⁹⁰² is an apocalyptic number.

71902 is a deficient number, since it is larger than the sum of its proper divisors (35954).

71902 is a wasteful number, since it uses less digits than its factorization.

71902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35953.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 71902 is about 268.1454829006. The cubic root of 71902 is about 41.5827930563.

The spelling of 71902 in words is "seventy-one thousand, nine hundred two".