109461786 has 48 divisors (see below), whose sum is σ = 258513696. Its totient is φ = 30802464.

The previous prime is 109461757. The next prime is 109461791. The reversal of 109461786 is 687164901.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16920 + ... + 22476.

It is an arithmetic number, because the mean of its divisors is an integer number (5385702).

Almost surely, 2^109461786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109461786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129256848).

109461786 is an abundant number, since it is smaller than the sum of its proper divisors (149051910).

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

109461786 is a wasteful number, since it uses less digits than its factorization.

109461786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5643 (or 5636 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 109461786 is about 10462.3986733445. The cubic root of 109461786 is about 478.3592503639.

The spelling of 109461786 in words is "one hundred nine million, four hundred sixty-one thousand, seven hundred eighty-six".