71923089 has 8 divisors (see below), whose sum is σ = 109597120. Its totient is φ = 41098896.

The previous prime is 71923081. The next prime is 71923091. The reversal of 71923089 is 98032917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71923089 - 2³ = 71923081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71923081) 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, 1712434 + ... + 1712475.

It is an arithmetic number, because the mean of its divisors is an integer number (13699640).

Almost surely, 2^71923089 is an apocalyptic number.

It is an amenable number.

71923089 is a deficient number, since it is larger than the sum of its proper divisors (37674031).

71923089 is a wasteful number, since it uses less digits than its factorization.

71923089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3424919.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 71923089 is about 8480.7481391679. The cubic root of 71923089 is about 415.8685809759.

The spelling of 71923089 in words is "seventy-one million, nine hundred twenty-three thousand, eighty-nine".