71088404 has 6 divisors (see below), whose sum is σ = 124404714. Its totient is φ = 35544200.

The previous prime is 71088403. The next prime is 71088427. The reversal of 71088404 is 40488017.

It can be written as a sum of positive squares in only one way, i.e., 68095504 + 2992900 = 8252^2 + 1730^2 .

It is a super-2 number, since 2×71088404² = 10107122366534432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71088401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8886047 + ... + 8886054.

It is an arithmetic number, because the mean of its divisors is an integer number (20734119).

Almost surely, 2^71088404 is an apocalyptic number.

It is an amenable number.

71088404 is a deficient number, since it is larger than the sum of its proper divisors (53316310).

71088404 is a wasteful number, since it uses less digits than its factorization.

71088404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17772105 (or 17772103 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 71088404 is about 8431.3939535524. The cubic root of 71088404 is about 414.2535650948.

The spelling of 71088404 in words is "seventy-one million, eighty-eight thousand, four hundred four".