109891734 has 16 divisors (see below), whose sum is σ = 224460288. Its totient is φ = 35851112.

The previous prime is 109891721. The next prime is 109891787. The reversal of 109891734 is 437198901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194562 + ... + 195125.

It is an arithmetic number, because the mean of its divisors is an integer number (14028768).

Almost surely, 2^109891734 is an apocalyptic number.

109891734 is an abundant number, since it is smaller than the sum of its proper divisors (114568554).

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

109891734 is a wasteful number, since it uses less digits than its factorization.

109891734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389739.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 109891734 is about 10482.9258320375. The cubic root of 109891734 is about 478.9847377834.

The spelling of 109891734 in words is "one hundred nine million, eight hundred ninety-one thousand, seven hundred thirty-four".