71074284 has 12 divisors (see below), whose sum is σ = 165840024. Its totient is φ = 23691424.

The previous prime is 71074271. The next prime is 71074319. The reversal of 71074284 is 48247017.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×71074284² = 10103107692225312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2961417 + ... + 2961440.

It is an arithmetic number, because the mean of its divisors is an integer number (13820002).

Almost surely, 2^71074284 is an apocalyptic number.

It is an amenable number.

71074284 is an abundant number, since it is smaller than the sum of its proper divisors (94765740).

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

71074284 is a wasteful number, since it uses less digits than its factorization.

71074284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922864 (or 5922862 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 71074284 is about 8430.5565652571. The cubic root of 71074284 is about 414.2261361129.

The spelling of 71074284 in words is "seventy-one million, seventy-four thousand, two hundred eighty-four".