109779604 has 12 divisors (see below), whose sum is σ = 209579328. Its totient is φ = 49899800.

The previous prime is 109779601. The next prime is 109779611. The reversal of 109779604 is 406977901.

It is a happy number.

It is a super-2 number, since 2×109779604² = 24103122908793632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109779601) 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, 1247452 + ... + 1247539.

It is an arithmetic number, because the mean of its divisors is an integer number (17464944).

Almost surely, 2^109779604 is an apocalyptic number.

It is an amenable number.

109779604 is a deficient number, since it is larger than the sum of its proper divisors (99799724).

109779604 is a wasteful number, since it uses less digits than its factorization.

109779604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495006 (or 2495004 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 109779604 is about 10477.5762464417. The cubic root of 109779604 is about 478.8217687879.

The spelling of 109779604 in words is "one hundred nine million, seven hundred seventy-nine thousand, six hundred four".