109647690 has 16 divisors (see below), whose sum is σ = 263154528. Its totient is φ = 29239376.

The previous prime is 109647673. The next prime is 109647709. The reversal of 109647690 is 96746901.

It is a super-2 number, since 2×109647690² = 24045231844672200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon 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, 1827432 + ... + 1827491.

It is an arithmetic number, because the mean of its divisors is an integer number (16447158).

Almost surely, 2^109647690 is an apocalyptic number.

109647690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109647690 is an abundant number, since it is smaller than the sum of its proper divisors (153506838).

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

109647690 is a wasteful number, since it uses less digits than its factorization.

109647690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654933.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 109647690 is about 10471.2792914715. The cubic root of 109647690 is about 478.6299037269.

The spelling of 109647690 in words is "one hundred nine million, six hundred forty-seven thousand, six hundred ninety".