71928258 has 32 divisors (see below), whose sum is σ = 152881344. Its totient is φ = 22482432.

The previous prime is 71928247. The next prime is 71928341. The reversal of 71928258 is 85282917.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30166 + ... + 32462.

It is an arithmetic number, because the mean of its divisors is an integer number (4777542).

Almost surely, 2^71928258 is an apocalyptic number.

71928258 is an abundant number, since it is smaller than the sum of its proper divisors (80953086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71928258 is a wasteful number, since it uses less digits than its factorization.

71928258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626.

The product of its digits is 80640, while the sum is 42.

The square root of 71928258 is about 8481.0528827499. The cubic root of 71928258 is about 415.8785433456.

The spelling of 71928258 in words is "seventy-one million, nine hundred twenty-eight thousand, two hundred fifty-eight".