89439927471 has 24 divisors (see below), whose sum is σ = 130142519936. Its totient is φ = 59189045760.

The previous prime is 89439927463. The next prime is 89439927509. The reversal of 89439927471 is 17472993498.

It is not a de Polignac number, because 89439927471 - 2³ = 89439927463 is a prime.

It is a super-3 number, since 3×89439927471³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89439927399 and 89439927408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89439927371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613026 + ... + 744768.

Almost surely, 2^89439927471 is an apocalyptic number.

89439927471 is a deficient number, since it is larger than the sum of its proper divisors (40702592465).

89439927471 is a wasteful number, since it uses less digits than its factorization.

89439927471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132303 (or 132300 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 89439927471 in words is "eighty-nine billion, four hundred thirty-nine million, nine hundred twenty-seven thousand, four hundred seventy-one".