71174920 has 96 divisors (see below), whose sum is σ = 175063680. Its totient is φ = 26024960.

The previous prime is 71174911. The next prime is 71174921. The reversal of 71174920 is 2947117.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71174921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 543255 + ... + 543385.

It is an arithmetic number, because the mean of its divisors is an integer number (1823580).

Almost surely, 2^71174920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71174920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87531840).

71174920 is an abundant number, since it is smaller than the sum of its proper divisors (103888760).

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

71174920 is a wasteful number, since it uses less digits than its factorization.

71174920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 71174920 is about 8436.5229804701. The cubic root of 71174920 is about 414.4215485731.

The spelling of 71174920 in words is "seventy-one million, one hundred seventy-four thousand, nine hundred twenty".