71089573 has 4 divisors (see below), whose sum is σ = 74180448. Its totient is φ = 67998700.

The previous prime is 71089559. The next prime is 71089591. The reversal of 71089573 is 37598017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71089573 - 2¹⁷ = 70958501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71089523) 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, 1545403 + ... + 1545448.

It is an arithmetic number, because the mean of its divisors is an integer number (18545112).

Almost surely, 2^71089573 is an apocalyptic number.

It is an amenable number.

71089573 is a deficient number, since it is larger than the sum of its proper divisors (3090875).

71089573 is a wasteful number, since it uses less digits than its factorization.

71089573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090874.

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

The square root of 71089573 is about 8431.4632775100. The cubic root of 71089573 is about 414.2558357876.

The spelling of 71089573 in words is "seventy-one million, eighty-nine thousand, five hundred seventy-three".