71423446 has 4 divisors (see below), whose sum is σ = 107135172. Its totient is φ = 35711722.

The previous prime is 71423423. The next prime is 71423461. The reversal of 71423446 is 64432417.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17855860 + ... + 17855863.

It is an arithmetic number, because the mean of its divisors is an integer number (26783793).

Almost surely, 2^71423446 is an apocalyptic number.

71423446 is a deficient number, since it is larger than the sum of its proper divisors (35711726).

71423446 is a wasteful number, since it uses less digits than its factorization.

71423446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35711725.

The product of its digits is 16128, while the sum is 31.

The square root of 71423446 is about 8451.2393174019. The cubic root of 71423446 is about 414.9033422736.

The spelling of 71423446 in words is "seventy-one million, four hundred twenty-three thousand, four hundred forty-six".