86343478 has 16 divisors (see below), whose sum is σ = 140762160. Its totient is φ = 39483936.

The previous prime is 86343473. The next prime is 86343497. The reversal of 86343478 is 87434368.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86343473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12400 + ... + 18067.

It is an arithmetic number, because the mean of its divisors is an integer number (8797635).

Almost surely, 2^86343478 is an apocalyptic number.

86343478 is a deficient number, since it is larger than the sum of its proper divisors (54418682).

86343478 is a wasteful number, since it uses less digits than its factorization.

86343478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30591.

The product of its digits is 387072, while the sum is 43.

The square root of 86343478 is about 9292.1191339758. The cubic root of 86343478 is about 441.9873565721.

The spelling of 86343478 in words is "eighty-six million, three hundred forty-three thousand, four hundred seventy-eight".