71490872 has 16 divisors (see below), whose sum is σ = 134136000. Its totient is φ = 35721280.

The previous prime is 71490857. The next prime is 71490883. The reversal of 71490872 is 27809417.

It is a super-2 number, since 2×71490872² = 10221889558640768, which contains 22 as substring.

It is a congruent number.

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, 19004 + ... + 22452.

It is an arithmetic number, because the mean of its divisors is an integer number (8383500).

Almost surely, 2^71490872 is an apocalyptic number.

It is an amenable number.

71490872 is a deficient number, since it is larger than the sum of its proper divisors (62645128).

71490872 is a wasteful number, since it uses less digits than its factorization.

71490872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046 (or 6042 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 71490872 is about 8455.2274954610. The cubic root of 71490872 is about 415.0338618521.

The spelling of 71490872 in words is "seventy-one million, four hundred ninety thousand, eight hundred seventy-two".