85421356 has 48 divisors (see below), whose sum is σ = 163477440. Its totient is φ = 38931200.

The previous prime is 85421353. The next prime is 85421377. The reversal of 85421356 is 65312458.

It is not an unprimeable number, because it can be changed into a prime (85421353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269310 + ... + 269626.

It is an arithmetic number, because the mean of its divisors is an integer number (3405780).

Almost surely, 2^85421356 is an apocalyptic number.

It is an amenable number.

85421356 is a deficient number, since it is larger than the sum of its proper divisors (78056084).

85421356 is a wasteful number, since it uses less digits than its factorization.

85421356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 472 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 85421356 is about 9242.3674456278. The cubic root of 85421356 is about 440.4082918131.

The spelling of 85421356 in words is "eighty-five million, four hundred twenty-one thousand, three hundred fifty-six".