101587889 has 8 divisors (see below), whose sum is σ = 115160640. Its totient is φ = 88837776.

The previous prime is 101587883. The next prime is 101587897. The reversal of 101587889 is 988785101.

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 101587889 - 2¹² = 101583793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101587883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205397 + ... + 205890.

It is an arithmetic number, because the mean of its divisors is an integer number (14395080).

Almost surely, 2^101587889 is an apocalyptic number.

101587889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

101587889 is a deficient number, since it is larger than the sum of its proper divisors (13572751).

101587889 is a wasteful number, since it uses less digits than its factorization.

101587889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411319.

The product of its (nonzero) digits is 161280, while the sum is 47.

The square root of 101587889 is about 10079.0817538107. The cubic root of 101587889 is about 466.6027691992.

The spelling of 101587889 in words is "one hundred one million, five hundred eighty-seven thousand, eight hundred eighty-nine".