85436 has 24 divisors (see below), whose sum is σ = 169344. Its totient is φ = 37440.

The previous prime is 85429. The next prime is 85439. The reversal of 85436 is 63458.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

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 (85439) 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, 1586 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (7056).

2⁸⁵⁴³⁶ is an apocalyptic number.

It is an amenable number.

85436 is a deficient number, since it is larger than the sum of its proper divisors (83908).

85436 is a wasteful number, since it uses less digits than its factorization.

85436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 99 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 85436 is about 292.2943721661. The cubic root of 85436 is about 44.0433457146.

The spelling of 85436 in words is "eighty-five thousand, four hundred thirty-six".