71700672 has 56 divisors (see below), whose sum is σ = 194854576. Its totient is φ = 23251968.

The previous prime is 71700667. The next prime is 71700691. The reversal of 71700672 is 27600717.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2058 + ... + 12150.

It is an arithmetic number, because the mean of its divisors is an integer number (3479546).

Almost surely, 2^71700672 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 71700672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97427288).

71700672 is an abundant number, since it is smaller than the sum of its proper divisors (123153904).

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

71700672 is a wasteful number, since it uses less digits than its factorization.

71700672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10145 (or 10135 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 71700672 is about 8467.6249326479. The cubic root of 71700672 is about 415.4394570622.

The spelling of 71700672 in words is "seventy-one million, seven hundred thousand, six hundred seventy-two".