85477 has 4 divisors (see below), whose sum is σ = 97696. Its totient is φ = 73260.

The previous prime is 85469. The next prime is 85487. The reversal of 85477 is 77458.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77458 = 2 ⋅38729.

It is a cyclic number.

It is not a de Polignac number, because 85477 - 2³ = 85469 is a prime.

It is a d-powerful number, because it can be written as 8³ + 5⁷ + 4⁶ + 7³ + 7⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6099 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (24424).

2⁸⁵⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

85477 is a deficient number, since it is larger than the sum of its proper divisors (12219).

85477 is a wasteful number, since it uses less digits than its factorization.

85477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12218.

The product of its digits is 7840, while the sum is 31.

The square root of 85477 is about 292.3644985288. The cubic root of 85477 is about 44.0503899285.

The spelling of 85477 in words is "eighty-five thousand, four hundred seventy-seven".