86728122 has 48 divisors (see below), whose sum is σ = 213027360. Its totient is φ = 25279776.

The previous prime is 86728093. The next prime is 86728123. The reversal of 86728122 is 22182768.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (86728123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5308 + ... + 14199.

It is an arithmetic number, because the mean of its divisors is an integer number (4438070).

Almost surely, 2^86728122 is an apocalyptic number.

86728122 is an abundant number, since it is smaller than the sum of its proper divisors (126299238).

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

86728122 is a wasteful number, since it uses less digits than its factorization.

86728122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19547 (or 19544 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 86728122 is about 9312.7934584635. The cubic root of 86728122 is about 442.6427079691.

The spelling of 86728122 in words is "eighty-six million, seven hundred twenty-eight thousand, one hundred twenty-two".