86029890 has 64 divisors (see below), whose sum is σ = 220776192. Its totient is φ = 21401600.

The previous prime is 86029873. The next prime is 86029897. The reversal of 86029890 is 9892068.

It is a super-2 number, since 2×86029890² = 14802283946824200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86029897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26770 + ... + 29810.

It is an arithmetic number, because the mean of its divisors is an integer number (3449628).

Almost surely, 2^86029890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86029890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110388096).

86029890 is an abundant number, since it is smaller than the sum of its proper divisors (134746302).

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

86029890 is a wasteful number, since it uses less digits than its factorization.

86029890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 86029890 is about 9275.2299162878. The cubic root of 86029890 is about 441.4516277660.

The spelling of 86029890 in words is "eighty-six million, twenty-nine thousand, eight hundred ninety".