88663987 has 4 divisors (see below), whose sum is σ = 89114256. Its totient is φ = 88213720.

The previous prime is 88663963. The next prime is 88664033. The reversal of 88663987 is 78936688.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88663987 - 2¹¹ = 88661939 is a prime.

It is a super-2 number, since 2×88663987² = 15722605181472338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88663957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224839 + ... + 225232.

It is an arithmetic number, because the mean of its divisors is an integer number (22278564).

Almost surely, 2^88663987 is an apocalyptic number.

88663987 is a deficient number, since it is larger than the sum of its proper divisors (450269).

88663987 is a wasteful number, since it uses less digits than its factorization.

88663987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450268.

The product of its digits is 3483648, while the sum is 55.

The square root of 88663987 is about 9416.1556380510. The cubic root of 88663987 is about 445.9119236616.

The spelling of 88663987 in words is "eighty-eight million, six hundred sixty-three thousand, nine hundred eighty-seven".