86912478 has 48 divisors (see below), whose sum is σ = 196166880. Its totient is φ = 27776448.

The previous prime is 86912477. The next prime is 86912491. The reversal of 86912478 is 87421968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86912473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86676 + ... + 87672.

It is an arithmetic number, because the mean of its divisors is an integer number (4086810).

Almost surely, 2^86912478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86912478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98083440).

86912478 is an abundant number, since it is smaller than the sum of its proper divisors (109254402).

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

86912478 is a wasteful number, since it uses less digits than its factorization.

86912478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201 (or 1198 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 86912478 is about 9322.6862008758. The cubic root of 86912478 is about 442.9561245181.

The spelling of 86912478 in words is "eighty-six million, nine hundred twelve thousand, four hundred seventy-eight".