88013509 has 8 divisors (see below), whose sum is σ = 88784640. Its totient is φ = 87245616.

The previous prime is 88013503. The next prime is 88013543. The reversal of 88013509 is 90531088.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 88013509 - 2³ = 88013501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88013501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119707 + ... + 120439.

It is an arithmetic number, because the mean of its divisors is an integer number (11098080).

Almost surely, 2^88013509 is an apocalyptic number.

It is an amenable number.

88013509 is a deficient number, since it is larger than the sum of its proper divisors (771131).

88013509 is a wasteful number, since it uses less digits than its factorization.

88013509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 88013509 is about 9381.5515241350. The cubic root of 88013509 is about 444.8187773637.

The spelling of 88013509 in words is "eighty-eight million, thirteen thousand, five hundred nine".