71089000 has 32 divisors (see below), whose sum is σ = 166350600. Its totient is φ = 28435200.

The previous prime is 71088989. The next prime is 71089033. The reversal of 71089000 is 98017.

It can be written as a sum of positive squares in 4 ways, for example, as 2762244 + 68326756 = 1662^2 + 8266^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34545 + ... + 36544.

Almost surely, 2^71089000 is an apocalyptic number.

It is an amenable number.

71089000 is an abundant number, since it is smaller than the sum of its proper divisors (95261600).

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

71089000 is a wasteful number, since it uses less digits than its factorization.

71089000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71110 (or 71096 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 71089000 is about 8431.4292975746. The cubic root of 71089000 is about 414.2547227822.

The spelling of 71089000 in words is "seventy-one million, eighty-nine thousand".