86604240 has 40 divisors (see below), whose sum is σ = 268473888. Its totient is φ = 23094400.

The previous prime is 86604233. The next prime is 86604247. The reversal of 86604240 is 4240668.

It is an interprime number because it is at equal distance from previous prime (86604233) and next prime (86604247).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 86604198 and 86604207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86604247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180186 + ... + 180665.

Almost surely, 2^86604240 is an apocalyptic number.

86604240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86604240 is an abundant number, since it is smaller than the sum of its proper divisors (181869648).

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

86604240 is a wasteful number, since it uses less digits than its factorization.

86604240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360867 (or 360861 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 86604240 is about 9306.1399086839. The cubic root of 86604240 is about 442.4318513583.

The spelling of 86604240 in words is "eighty-six million, six hundred four thousand, two hundred forty".