109727856 has 90 divisors (see below), whose sum is σ = 357244992. Its totient is φ = 31348800.

The previous prime is 109727797. The next prime is 109727867. The reversal of 109727856 is 658727901.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 720 + ... + 14831.

Almost surely, 2^109727856 is an apocalyptic number.

109727856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109727856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178622496).

109727856 is an abundant number, since it is smaller than the sum of its proper divisors (247517136).

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

109727856 is a wasteful number, since it uses less digits than its factorization.

109727856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15579 (or 15563 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 109727856 is about 10475.1064911055. The cubic root of 109727856 is about 478.7465211635.

Adding to 109727856 its sum of digits (45), we get a palindrome (109727901).

The spelling of 109727856 in words is "one hundred nine million, seven hundred twenty-seven thousand, eight hundred fifty-six".