86740605 has 64 divisors (see below), whose sum is σ = 185548800. Its totient is φ = 37558080.

The previous prime is 86740603. The next prime is 86740609. The reversal of 86740605 is 50604768.

It is a happy number.

86740605 is a `hidden beast` number, since 8 + 6 + 7 + 40 + 605 = 666.

It is not a de Polignac number, because 86740605 - 2¹ = 86740603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86740605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86740603) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15540 + ... + 20370.

It is an arithmetic number, because the mean of its divisors is an integer number (2899200).

Almost surely, 2^86740605 is an apocalyptic number.

It is an amenable number.

86740605 is an abundant number, since it is smaller than the sum of its proper divisors (98808195).

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

86740605 is a wasteful number, since it uses less digits than its factorization.

86740605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871 (or 4865 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 86740605 is about 9313.4636414172. The cubic root of 86740605 is about 442.6639438486.

The spelling of 86740605 in words is "eighty-six million, seven hundred forty thousand, six hundred five".