111604889 has 8 divisors (see below), whose sum is σ = 122433120. Its totient is φ = 100890400.

The previous prime is 111604859. The next prime is 111604919. The reversal of 111604889 is 988406111.

It is an interprime number because it is at equal distance from previous prime (111604859) and next prime (111604919).

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 111604889 - 2¹² = 111600793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111604819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26372 + ... + 30309.

It is an arithmetic number, because the mean of its divisors is an integer number (15304140).

Almost surely, 2^111604889 is an apocalyptic number.

It is an amenable number.

111604889 is a deficient number, since it is larger than the sum of its proper divisors (10828231).

111604889 is a wasteful number, since it uses less digits than its factorization.

111604889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56871.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 111604889 is about 10564.3215115785. The cubic root of 111604889 is about 481.4609553809.

The spelling of 111604889 in words is "one hundred eleven million, six hundred four thousand, eight hundred eighty-nine".