86889420 has 36 divisors (see below), whose sum is σ = 263565120. Its totient is φ = 23170464.

The previous prime is 86889409. The next prime is 86889427. The reversal of 86889420 is 2498868.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (86889427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241180 + ... + 241539.

Almost surely, 2^86889420 is an apocalyptic number.

It is an amenable number.

86889420 is an abundant number, since it is smaller than the sum of its proper divisors (176675700).

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

86889420 is a wasteful number, since it uses less digits than its factorization.

86889420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482734 (or 482729 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 86889420 is about 9321.4494581047. The cubic root of 86889420 is about 442.9169487637.

The spelling of 86889420 in words is "eighty-six million, eight hundred eighty-nine thousand, four hundred twenty".