71270946 has 24 divisors (see below), whose sum is σ = 154590384. Its totient is φ = 23730840.

The previous prime is 71270929. The next prime is 71270959. The reversal of 71270946 is 64907217.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71270946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21705 + ... + 24771.

It is an arithmetic number, because the mean of its divisors is an integer number (6441266).

It is a vampire number, since it can be written as 7746 ⋅ 9201 (with its own digits).

Almost surely, 2^71270946 is an apocalyptic number.

71270946 is an abundant number, since it is smaller than the sum of its proper divisors (83319438).

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

71270946 is a wasteful number, since it uses less digits than its factorization.

71270946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366 (or 4363 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 71270946 is about 8442.2121508524. The cubic root of 71270946 is about 414.6078377902.

The spelling of 71270946 in words is "seventy-one million, two hundred seventy thousand, nine hundred forty-six".