86743240 has 16 divisors (see below), whose sum is σ = 195172380. Its totient is φ = 34697280.

The previous prime is 86743213. The next prime is 86743253. The reversal of 86743240 is 4234768.

It can be written as a sum of positive squares in 2 ways, for example, as 86007076 + 736164 = 9274^2 + 858^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86743196 and 86743205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084251 + ... + 1084330.

Almost surely, 2^86743240 is an apocalyptic number.

It is an amenable number.

86743240 is an abundant number, since it is smaller than the sum of its proper divisors (108429140).

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

86743240 is a wasteful number, since it uses less digits than its factorization.

86743240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168592 (or 2168588 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 86743240 is about 9313.6051022147. The cubic root of 86743240 is about 442.6684262079.

The spelling of 86743240 in words is "eighty-six million, seven hundred forty-three thousand, two hundred forty".