71197700 has 144 divisors (see below), whose sum is σ = 193987584. Its totient is φ = 22118400.

The previous prime is 71197691. The next prime is 71197727. The reversal of 71197700 is 779117.

It is a happy number.

It is a super-2 number, since 2×71197700² = 10138224970580000, which contains 22 as substring.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 368804 + ... + 368996.

It is an arithmetic number, because the mean of its divisors is an integer number (1347136).

Almost surely, 2^71197700 is an apocalyptic number.

71197700 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71197700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96993792).

71197700 is an abundant number, since it is smaller than the sum of its proper divisors (122789884).

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

71197700 is a wasteful number, since it uses less digits than its factorization.

71197700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 3087, while the sum is 32.

The square root of 71197700 is about 8437.8729547203. The cubic root of 71197700 is about 414.4657566354.

The spelling of 71197700 in words is "seventy-one million, one hundred ninety-seven thousand, seven hundred".