88638537 has 16 divisors (see below), whose sum is σ = 127447040. Its totient is φ = 54473472.

The previous prime is 88638533. The next prime is 88638547. The reversal of 88638537 is 73583688.

It is a happy number.

It is not a de Polignac number, because 88638537 - 2² = 88638533 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

Its product of digits (967680) is a multiple of the sum of its prime divisors (3072).

It is not an unprimeable number, because it can be changed into a prime (88638533) 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, 48993 + ... + 50769.

It is an arithmetic number, because the mean of its divisors is an integer number (7965440).

Almost surely, 2^88638537 is an apocalyptic number.

It is an amenable number.

88638537 is a deficient number, since it is larger than the sum of its proper divisors (38808503).

88638537 is a wasteful number, since it uses less digits than its factorization.

88638537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072.

The product of its digits is 967680, while the sum is 48.

The square root of 88638537 is about 9414.8041402888. The cubic root of 88638537 is about 445.8692549118.

The spelling of 88638537 in words is "eighty-eight million, six hundred thirty-eight thousand, five hundred thirty-seven".