71486500 has 24 divisors (see below), whose sum is σ = 156127608. Its totient is φ = 28594400.

The previous prime is 71486473. The next prime is 71486501. The reversal of 71486500 is 568417.

It can be written as a sum of positive squares in 4 ways, for example, as 16384 + 71470116 = 128^2 + 8454^2 .

It is a super-2 number, since 2×71486500² = 10220639364500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71486501) 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, 70987 + ... + 71986.

It is an arithmetic number, because the mean of its divisors is an integer number (6505317).

Almost surely, 2^71486500 is an apocalyptic number.

It is an amenable number.

71486500 is an abundant number, since it is smaller than the sum of its proper divisors (84641108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71486500 is a wasteful number, since it uses less digits than its factorization.

71486500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142992 (or 142980 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 71486500 is about 8454.9689532251. The cubic root of 71486500 is about 415.0254012613.

The spelling of 71486500 in words is "seventy-one million, four hundred eighty-six thousand, five hundred".