109772906 has 8 divisors (see below), whose sum is σ = 164705184. Its totient is φ = 54871180.

The previous prime is 109772903. The next prime is 109772921. The reversal of 109772906 is 609277901.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (109772903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6821 + ... + 16311.

It is an arithmetic number, because the mean of its divisors is an integer number (20588148).

Almost surely, 2^109772906 is an apocalyptic number.

109772906 is a deficient number, since it is larger than the sum of its proper divisors (54932278).

109772906 is an equidigital number, since it uses as much as digits as its factorization.

109772906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15276.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 109772906 is about 10477.2566065741. The cubic root of 109772906 is about 478.8120304476.

The spelling of 109772906 in words is "one hundred nine million, seven hundred seventy-two thousand, nine hundred six".