87041409 has 16 divisors (see below), whose sum is σ = 142837632. Its totient is φ = 45911808.

The previous prime is 87041399. The next prime is 87041419. The reversal of 87041409 is 90414078.

It is an interprime number because it is at equal distance from previous prime (87041399) and next prime (87041419).

It is not a de Polignac number, because 87041409 - 2⁷ = 87041281 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87041409.

It is not an unprimeable number, because it can be changed into a prime (87041419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159144 + ... + 159689.

It is an arithmetic number, because the mean of its divisors is an integer number (8927352).

Almost surely, 2^87041409 is an apocalyptic number.

It is an amenable number.

87041409 is a deficient number, since it is larger than the sum of its proper divisors (55796223).

87041409 is a wasteful number, since it uses less digits than its factorization.

87041409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318856.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 87041409 is about 9329.5985444177. The cubic root of 87041409 is about 443.1750518812.

The spelling of 87041409 in words is "eighty-seven million, forty-one thousand, four hundred nine".