86798574 has 64 divisors (see below), whose sum is σ = 209664000. Its totient is φ = 26516160.

The previous prime is 86798563. The next prime is 86798587. The reversal of 86798574 is 47589768.

86798574 is a `hidden beast` number, since 8 + 67 + 9 + 8 + 574 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 86798574.

It is a congruent number.

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, 30442 + ... + 33170.

It is an arithmetic number, because the mean of its divisors is an integer number (3276000).

Almost surely, 2^86798574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86798574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104832000).

86798574 is an abundant number, since it is smaller than the sum of its proper divisors (122865426).

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

86798574 is a wasteful number, since it uses less digits than its factorization.

86798574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790 (or 2784 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 86798574 is about 9316.5752291279. The cubic root of 86798574 is about 442.7625330921.

It can be divided in two parts, 8679857 and 4, that added together give a triangular number (8679861 = T₄₁₆₆).

The spelling of 86798574 in words is "eighty-six million, seven hundred ninety-eight thousand, five hundred seventy-four".