89085139 has 24 divisors (see below), whose sum is σ = 106224912. Its totient is φ = 74056320.

The previous prime is 89085137. The next prime is 89085181. The reversal of 89085139 is 93158098.

It is not a de Polignac number, because 89085139 - 2¹ = 89085137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89085095 and 89085104.

It is not an unprimeable number, because it can be changed into a prime (89085137) 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, 321469 + ... + 321745.

It is an arithmetic number, because the mean of its divisors is an integer number (4426038).

Almost surely, 2^89085139 is an apocalyptic number.

89085139 is a deficient number, since it is larger than the sum of its proper divisors (17139773).

89085139 is a wasteful number, since it uses less digits than its factorization.

89085139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 89085139 is about 9438.4924113971. The cubic root of 89085139 is about 446.6168326993.

The spelling of 89085139 in words is "eighty-nine million, eighty-five thousand, one hundred thirty-nine".