85421016 has 24 divisors (see below), whose sum is σ = 231348780. Its totient is φ = 28473648.

The previous prime is 85421009. The next prime is 85421033. The reversal of 85421016 is 61012458.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 593130 + ... + 593273.

Almost surely, 2^85421016 is an apocalyptic number.

It is an amenable number.

85421016 is an abundant number, since it is smaller than the sum of its proper divisors (145927764).

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

85421016 is a wasteful number, since it uses less digits than its factorization.

85421016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186415 (or 1186408 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 85421016 is about 9242.3490520538. The cubic root of 85421016 is about 440.4077074978.

The spelling of 85421016 in words is "eighty-five million, four hundred twenty-one thousand, sixteen".