104989356 has 72 divisors (see below), whose sum is σ = 275459184. Its totient is φ = 33692160.

The previous prime is 104989351. The next prime is 104989369. The reversal of 104989356 is 653989401.

It is a happy number.

It is a super-2 number, since 2×104989356² = 22045529746589472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104989351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122080 + ... + 122936.

It is an arithmetic number, because the mean of its divisors is an integer number (3825822).

Almost surely, 2^104989356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104989356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137729592).

104989356 is an abundant number, since it is smaller than the sum of its proper divisors (170469828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104989356 is a wasteful number, since it uses less digits than its factorization.

104989356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 104989356 is about 10246.4313787777. The cubic root of 104989356 is about 471.7534561803.

Adding to 104989356 its sum of digits (45), we get a palindrome (104989401).

The spelling of 104989356 in words is "one hundred four million, nine hundred eighty-nine thousand, three hundred fifty-six".