71728262 has 4 divisors (see below), whose sum is σ = 107592396. Its totient is φ = 35864130.

The previous prime is 71728243. The next prime is 71728271. The reversal of 71728262 is 26282717.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17932064 + ... + 17932067.

It is an arithmetic number, because the mean of its divisors is an integer number (26898099).

Almost surely, 2^71728262 is an apocalyptic number.

71728262 is a deficient number, since it is larger than the sum of its proper divisors (35864134).

71728262 is a wasteful number, since it uses less digits than its factorization.

71728262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35864133.

The product of its digits is 18816, while the sum is 35.

The square root of 71728262 is about 8469.2539222767. The cubic root of 71728262 is about 415.4927364548.

The spelling of 71728262 in words is "seventy-one million, seven hundred twenty-eight thousand, two hundred sixty-two".