71428582 has 8 divisors (see below), whose sum is σ = 107180496. Its totient is φ = 35701752.

The previous prime is 71428571. The next prime is 71428583. The reversal of 71428582 is 28582417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71428583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4663 + ... + 12829.

It is an arithmetic number, because the mean of its divisors is an integer number (13397562).

Almost surely, 2^71428582 is an apocalyptic number.

71428582 is a deficient number, since it is larger than the sum of its proper divisors (35751914).

71428582 is a wasteful number, since it uses less digits than its factorization.

71428582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12542.

The product of its digits is 35840, while the sum is 37.

The square root of 71428582 is about 8451.5431726993. The cubic root of 71428582 is about 414.9132871522.

It can be divided in two parts, 71428 and 582, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 71428582 in words is "seventy-one million, four hundred twenty-eight thousand, five hundred eighty-two".