86890470 has 16 divisors (see below), whose sum is σ = 208537200. Its totient is φ = 23170784.

The previous prime is 86890457. The next prime is 86890471. The reversal of 86890470 is 7409868.

It is a happy number.

It is a super-4 number, since 4×86890470⁴ (a number of 33 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86890471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448145 + ... + 1448204.

It is an arithmetic number, because the mean of its divisors is an integer number (13033575).

Almost surely, 2^86890470 is an apocalyptic number.

86890470 is an abundant number, since it is smaller than the sum of its proper divisors (121646730).

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

86890470 is a wasteful number, since it uses less digits than its factorization.

86890470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896359.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 86890470 is about 9321.5057796474. The cubic root of 86890470 is about 442.9187328740.

The spelling of 86890470 in words is "eighty-six million, eight hundred ninety thousand, four hundred seventy".