71147700 has 144 divisors (see below), whose sum is σ = 246442560. Its totient is φ = 17504640.

The previous prime is 71147689. The next prime is 71147719. The reversal of 71147700 is 774117.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 34087 + ... + 36113.

Almost surely, 2^71147700 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 71147700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123221280).

71147700 is an abundant number, since it is smaller than the sum of its proper divisors (175294860).

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

71147700 is a wasteful number, since it uses less digits than its factorization.

71147700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063 (or 2050 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 71147700 is about 8434.9096023609. The cubic root of 71147700 is about 414.3687116427.

The spelling of 71147700 in words is "seventy-one million, one hundred forty-seven thousand, seven hundred".