71473768 has 16 divisors (see below), whose sum is σ = 134178660. Its totient is φ = 35692800.

The previous prime is 71473747. The next prime is 71473781. The reversal of 71473768 is 86737417.

It can be written as a sum of positive squares in 2 ways, for example, as 63075364 + 8398404 = 7942^2 + 2898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978 + ... + 12118.

Almost surely, 2^71473768 is an apocalyptic number.

It is an amenable number.

71473768 is a deficient number, since it is larger than the sum of its proper divisors (62704892).

71473768 is a wasteful number, since it uses less digits than its factorization.

71473768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11028 (or 11024 counting only the distinct ones).

The product of its digits is 197568, while the sum is 43.

The square root of 71473768 is about 8454.2159896705. The cubic root of 71473768 is about 415.0007606315. Note that the first 3 decimals are identical.

The spelling of 71473768 in words is "seventy-one million, four hundred seventy-three thousand, seven hundred sixty-eight".