86221136 has 10 divisors (see below), whose sum is σ = 167053482. Its totient is φ = 43110560.

The previous prime is 86221133. The next prime is 86221169. The reversal of 86221136 is 63112268.

It can be written as a sum of positive squares in only one way, i.e., 85673536 + 547600 = 9256^2 + 740^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86221099 and 86221108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86221133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694395 + ... + 2694426.

Almost surely, 2^86221136 is an apocalyptic number.

It is an amenable number.

86221136 is a deficient number, since it is larger than the sum of its proper divisors (80832346).

86221136 is a wasteful number, since it uses less digits than its factorization.

86221136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388829 (or 5388823 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 86221136 is about 9285.5336949472. The cubic root of 86221136 is about 441.7785039834.

The spelling of 86221136 in words is "eighty-six million, two hundred twenty-one thousand, one hundred thirty-six".