85478136 has 32 divisors (see below), whose sum is σ = 215263440. Its totient is φ = 28283648.

The previous prime is 85478119. The next prime is 85478149. The reversal of 85478136 is 63187458.

It is a super-3 number, since 3×85478136³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9711 + ... + 16286.

Almost surely, 2^85478136 is an apocalyptic number.

It is an amenable number.

85478136 is an abundant number, since it is smaller than the sum of its proper divisors (129785304).

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

85478136 is a wasteful number, since it uses less digits than its factorization.

85478136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26143 (or 26139 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 85478136 is about 9245.4386591443. The cubic root of 85478136 is about 440.5058507273.

The spelling of 85478136 in words is "eighty-five million, four hundred seventy-eight thousand, one hundred thirty-six".