71486523 has 8 divisors (see below), whose sum is σ = 105906000. Its totient is φ = 47657664.

The previous prime is 71486509. The next prime is 71486549. The reversal of 71486523 is 32568417.

It is not a de Polignac number, because 71486523 - 2¹⁷ = 71355451 is a prime.

It is a super-2 number, since 2×71486523² = 10220645941259058, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71486123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323798 + ... + 1323851.

It is an arithmetic number, because the mean of its divisors is an integer number (13238250).

Almost surely, 2^71486523 is an apocalyptic number.

71486523 is a deficient number, since it is larger than the sum of its proper divisors (34419477).

71486523 is a wasteful number, since it uses less digits than its factorization.

71486523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647658 (or 2647652 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 71486523 is about 8454.9703133719. The cubic root of 71486523 is about 415.0254457713.

The spelling of 71486523 in words is "seventy-one million, four hundred eighty-six thousand, five hundred twenty-three".