86758290 has 64 divisors (see below), whose sum is σ = 234270720. Its totient is φ = 23129712.

The previous prime is 86758283. The next prime is 86758319. The reversal of 86758290 is 9285768.

86758290 is a `hidden beast` number, since 8 + 67 + 582 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19887 + ... + 23853.

It is an arithmetic number, because the mean of its divisors is an integer number (3660480).

Almost surely, 2^86758290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86758290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117135360).

86758290 is an abundant number, since it is smaller than the sum of its proper divisors (147512430).

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

86758290 is an equidigital number, since it uses as much as digits as its factorization.

86758290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995 (or 3977 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 86758290 is about 9314.4130249845. The cubic root of 86758290 is about 442.6940257995.

The spelling of 86758290 in words is "eighty-six million, seven hundred fifty-eight thousand, two hundred ninety".