71675720 has 32 divisors (see below), whose sum is σ = 166475520. Its totient is φ = 27744960.

The previous prime is 71675719. The next prime is 71675753. The reversal of 71675720 is 2757617.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27662 + ... + 30141.

It is an arithmetic number, because the mean of its divisors is an integer number (5202360).

Almost surely, 2^71675720 is an apocalyptic number.

It is an amenable number.

71675720 is an abundant number, since it is smaller than the sum of its proper divisors (94799800).

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

71675720 is a wasteful number, since it uses less digits than its factorization.

71675720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57845 (or 57841 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 71675720 is about 8466.1514278921. The cubic root of 71675720 is about 415.3912601730.

The spelling of 71675720 in words is "seventy-one million, six hundred seventy-five thousand, seven hundred twenty".