71897148 has 72 divisors (see below), whose sum is σ = 199115280. Its totient is φ = 21772800.

The previous prime is 71897129. The next prime is 71897167. The reversal of 71897148 is 84179817.

It is an interprime number because it is at equal distance from previous prime (71897129) and next prime (71897167).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15723 + ... + 19773.

It is an arithmetic number, because the mean of its divisors is an integer number (2765490).

Almost surely, 2^71897148 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 71897148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99557640).

71897148 is an abundant number, since it is smaller than the sum of its proper divisors (127218132).

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

71897148 is a wasteful number, since it uses less digits than its factorization.

71897148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4102 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The square root of 71897148 is about 8479.2185960736. The cubic root of 71897148 is about 415.8185768939.

The spelling of 71897148 in words is "seventy-one million, eight hundred ninety-seven thousand, one hundred forty-eight".