85498189 has 12 divisors (see below), whose sum is σ = 99630300. Its totient is φ = 73156608.

The previous prime is 85498181. The next prime is 85498211. The reversal of 85498189 is 98189458.

It can be written as a sum of positive squares in 2 ways, for example, as 15642025 + 69856164 = 3955^2 + 8358^2 .

It is not a de Polignac number, because 85498189 - 2³ = 85498181 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85498181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36547 + ... + 38815.

It is an arithmetic number, because the mean of its divisors is an integer number (8302525).

Almost surely, 2^85498189 is an apocalyptic number.

It is an amenable number.

85498189 is a deficient number, since it is larger than the sum of its proper divisors (14132111).

85498189 is a wasteful number, since it uses less digits than its factorization.

85498189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052 (or 3045 counting only the distinct ones).

The product of its digits is 829440, while the sum is 52.

The square root of 85498189 is about 9246.5230762703. The cubic root of 85498189 is about 440.5402952982.

The spelling of 85498189 in words is "eighty-five million, four hundred ninety-eight thousand, one hundred eighty-nine".