71375089 has 4 divisors (see below), whose sum is σ = 71395300. Its totient is φ = 71354880.

The previous prime is 71375081. The next prime is 71375111. The reversal of 71375089 is 98057317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17572864 + 53802225 = 4192^2 + 7335^2 .

It is a cyclic number.

It is not a de Polignac number, because 71375089 - 2³ = 71375081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71375081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264 + ... + 12385.

It is an arithmetic number, because the mean of its divisors is an integer number (17848825).

Almost surely, 2^71375089 is an apocalyptic number.

It is an amenable number.

71375089 is a deficient number, since it is larger than the sum of its proper divisors (20211).

71375089 is a wasteful number, since it uses less digits than its factorization.

71375089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20210.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 71375089 is about 8448.3778916429. The cubic root of 71375089 is about 414.8096848370.

The spelling of 71375089 in words is "seventy-one million, three hundred seventy-five thousand, eighty-nine".