85478 has 8 divisors (see below), whose sum is σ = 130080. Its totient is φ = 42120.

The previous prime is 85469. The next prime is 85487. The reversal of 85478 is 87458.

It is an interprime number because it is at equal distance from previous prime (85469) and next prime (85487).

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113 + ... + 428.

It is an arithmetic number, because the mean of its divisors is an integer number (16260).

2⁸⁵⁴⁷⁸ is an apocalyptic number.

85478 is a deficient number, since it is larger than the sum of its proper divisors (44602).

85478 is a wasteful number, since it uses less digits than its factorization.

85478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its digits is 8960, while the sum is 32.

The square root of 85478 is about 292.3662087178. The cubic root of 85478 is about 44.0505617105.

The spelling of 85478 in words is "eighty-five thousand, four hundred seventy-eight".