71285474 has 16 divisors (see below), whose sum is σ = 115932600. Its totient is φ = 32678400.

The previous prime is 71285419. The next prime is 71285507. The reversal of 71285474 is 47458217.

It can be written as a sum of positive squares in 4 ways, for example, as 32410249 + 38875225 = 5693^2 + 6235^2 .

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, 5327 + ... + 13074.

Almost surely, 2^71285474 is an apocalyptic number.

71285474 is a deficient number, since it is larger than the sum of its proper divisors (44647126).

71285474 is a wasteful number, since it uses less digits than its factorization.

71285474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18565.

The product of its digits is 62720, while the sum is 38.

The square root of 71285474 is about 8443.0725449921. The cubic root of 71285474 is about 414.6360073496.

The spelling of 71285474 in words is "seventy-one million, two hundred eighty-five thousand, four hundred seventy-four".