71190928 has 10 divisors (see below), whose sum is σ = 137932454. Its totient is φ = 35595456.

The previous prime is 71190907. The next prime is 71190937. The reversal of 71190928 is 82909117.

It can be written as a sum of positive squares in only one way, i.e., 63170704 + 8020224 = 7948^2 + 2832^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2224701 + ... + 2224732.

Almost surely, 2^71190928 is an apocalyptic number.

It is an amenable number.

71190928 is a deficient number, since it is larger than the sum of its proper divisors (66741526).

71190928 is a wasteful number, since it uses less digits than its factorization.

71190928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449441 (or 4449435 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 71190928 is about 8437.4716592117. The cubic root of 71190928 is about 414.4526155222.

The spelling of 71190928 in words is "seventy-one million, one hundred ninety thousand, nine hundred twenty-eight".