71084672 has 16 divisors (see below), whose sum is σ = 141614250. Its totient is φ = 35542272.

The previous prime is 71084653. The next prime is 71084683. The reversal of 71084672 is 27648017.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37258816 + 33825856 = 6104^2 + 5816^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277547 + ... + 277802.

Almost surely, 2^71084672 is an apocalyptic number.

It is an amenable number.

71084672 is a deficient number, since it is larger than the sum of its proper divisors (70529578).

71084672 is an equidigital number, since it uses as much as digits as its factorization.

71084672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555363 (or 555351 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 71084672 is about 8431.1726349304. The cubic root of 71084672 is about 414.2463158049.

The spelling of 71084672 in words is "seventy-one million, eighty-four thousand, six hundred seventy-two".