85474089 has 8 divisors (see below), whose sum is σ = 126628320. Its totient is φ = 56982708.

The previous prime is 85474073. The next prime is 85474093. The reversal of 85474089 is 98047458.

It is not a de Polignac number, because 85474089 - 2⁴ = 85474073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85474009) 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, 1582827 + ... + 1582880.

It is an arithmetic number, because the mean of its divisors is an integer number (15828540).

Almost surely, 2^85474089 is an apocalyptic number.

It is an amenable number.

85474089 is a deficient number, since it is larger than the sum of its proper divisors (41154231).

85474089 is a wasteful number, since it uses less digits than its factorization.

85474089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165716 (or 3165710 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 85474089 is about 9245.2197918708. The cubic root of 85474089 is about 440.4988986364.

The spelling of 85474089 in words is "eighty-five million, four hundred seventy-four thousand, eighty-nine".