71000748 has 72 divisors (see below), whose sum is σ = 220901408. Its totient is φ = 18724608.

The previous prime is 71000731. The next prime is 71000753. The reversal of 71000748 is 84700017.

It is a super-2 number, since 2×71000748² = 10082212433119008, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7561 + ... + 14112.

Almost surely, 2^71000748 is an apocalyptic number.

71000748 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

71000748 is an abundant number, since it is smaller than the sum of its proper divisors (149900660).

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

71000748 is a wasteful number, since it uses less digits than its factorization.

71000748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21703 (or 21698 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 71000748 is about 8426.1941586935. The cubic root of 71000748 is about 414.0832290835.

The spelling of 71000748 in words is "seventy-one million, seven hundred forty-eight", and thus it is an aban number.