71894470 has 16 divisors (see below), whose sum is σ = 129710160. Its totient is φ = 28691104.

The previous prime is 71894453. The next prime is 71894483. The reversal of 71894470 is 7449817.

It is a congruent number.

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, 3685 + ... + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (8106885).

Almost surely, 2^71894470 is an apocalyptic number.

71894470 is a deficient number, since it is larger than the sum of its proper divisors (57815690).

71894470 is a wasteful number, since it uses less digits than its factorization.

71894470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16679.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 71894470 is about 8479.0606791083. The cubic root of 71894470 is about 415.8134140745.

The spelling of 71894470 in words is "seventy-one million, eight hundred ninety-four thousand, four hundred seventy".