86329620 has 144 divisors (see below), whose sum is σ = 286191360. Its totient is φ = 20936448.

The previous prime is 86329619. The next prime is 86329643. The reversal of 86329620 is 2692368.

86329620 is a `hidden beast` number, since 8 + 6 + 3 + 29 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184627 + ... + 185093.

It is an arithmetic number, because the mean of its divisors is an integer number (1987440).

Almost surely, 2^86329620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86329620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143095680).

86329620 is an abundant number, since it is smaller than the sum of its proper divisors (199861740).

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

86329620 is a wasteful number, since it uses less digits than its factorization.

86329620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 86329620 is about 9291.3734183919. The cubic root of 86329620 is about 441.9637092021.

The spelling of 86329620 in words is "eighty-six million, three hundred twenty-nine thousand, six hundred twenty".