86221830 has 32 divisors (see below), whose sum is σ = 208332000. Its totient is φ = 22836992.

The previous prime is 86221823. The next prime is 86221873. The reversal of 86221830 is 3812268.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5175 + ... + 14114.

It is an arithmetic number, because the mean of its divisors is an integer number (6510375).

Almost surely, 2^86221830 is an apocalyptic number.

86221830 is an abundant number, since it is smaller than the sum of its proper divisors (122110170).

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

86221830 is a wasteful number, since it uses less digits than its factorization.

86221830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19448.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 86221830 is about 9285.5710648296. The cubic root of 86221830 is about 441.7796892824.

The spelling of 86221830 in words is "eighty-six million, two hundred twenty-one thousand, eight hundred thirty".