85478406 has 32 divisors (see below), whose sum is σ = 184554720. Its totient is φ = 26237184.

The previous prime is 85478387. The next prime is 85478413. The reversal of 85478406 is 60487458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38626 + ... + 40778.

It is an arithmetic number, because the mean of its divisors is an integer number (5767335).

Almost surely, 2^85478406 is an apocalyptic number.

85478406 is an abundant number, since it is smaller than the sum of its proper divisors (99076314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85478406 is a wasteful number, since it uses less digits than its factorization.

85478406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 85478406 is about 9245.4532609278. The cubic root of 85478406 is about 440.5063145358.

The spelling of 85478406 in words is "eighty-five million, four hundred seventy-eight thousand, four hundred six".