71074746 has 20 divisors (see below), whose sum is σ = 159260442. Its totient is φ = 23691528.

The previous prime is 71074733. The next prime is 71074747. The reversal of 71074746 is 64747017.

It can be written as a sum of positive squares in only one way, i.e., 52490025 + 18584721 = 7245^2 + 4311^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71074746.

It is not an unprimeable number, because it can be changed into a prime (71074747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 219205 + ... + 219528.

Almost surely, 2^71074746 is an apocalyptic number.

71074746 is an abundant number, since it is smaller than the sum of its proper divisors (88185696).

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

71074746 is a wasteful number, since it uses less digits than its factorization.

71074746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438747 (or 438738 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 71074746 is about 8430.5839655388. The cubic root of 71074746 is about 414.2270336342.

The spelling of 71074746 in words is "seventy-one million, seventy-four thousand, seven hundred forty-six".