71889470 has 24 divisors (see below), whose sum is σ = 130788216. Its totient is φ = 28450688.

The previous prime is 71889469. The next prime is 71889487. The reversal of 71889470 is 7498817.

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 in 11 ways as a sum of consecutive naturals, for example, 127409 + ... + 127971.

It is an arithmetic number, because the mean of its divisors is an integer number (5449509).

Almost surely, 2^71889470 is an apocalyptic number.

71889470 is a deficient number, since it is larger than the sum of its proper divisors (58898746).

71889470 is a wasteful number, since it uses less digits than its factorization.

71889470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 71889470 is about 8478.7658300014. The cubic root of 71889470 is about 415.8037744121.

The spelling of 71889470 in words is "seventy-one million, eight hundred eighty-nine thousand, four hundred seventy".