71074812 has 24 divisors (see below), whose sum is σ = 169887312. Its totient is φ = 23113600.

The previous prime is 71074789. The next prime is 71074813. The reversal of 71074812 is 21847017.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 71074812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71074813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71739 + ... + 72722.

It is an arithmetic number, because the mean of its divisors is an integer number (7078638).

Almost surely, 2^71074812 is an apocalyptic number.

It is an amenable number.

71074812 is an abundant number, since it is smaller than the sum of its proper divisors (98812500).

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

71074812 is a wasteful number, since it uses less digits than its factorization.

71074812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144509 (or 144507 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 71074812 is about 8430.5878798575. The cubic root of 71074812 is about 414.2271618512.

The spelling of 71074812 in words is "seventy-one million, seventy-four thousand, eight hundred twelve".