109920393 has 18 divisors (see below), whose sum is σ = 174521802. Its totient is φ = 66617760.

The previous prime is 109920361. The next prime is 109920403. The reversal of 109920393 is 393029901.

It can be written as a sum of positive squares in only one way, i.e., 73051209 + 36869184 = 8547^2 + 6072^2 .

It is not a de Polignac number, because 109920393 - 2⁵ = 109920361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109920323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49380 + ... + 51557.

Almost surely, 2^109920393 is an apocalyptic number.

It is an amenable number.

109920393 is a deficient number, since it is larger than the sum of its proper divisors (64601409).

109920393 is a wasteful number, since it uses less digits than its factorization.

109920393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100965 (or 100951 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 109920393 is about 10484.2926800047. The cubic root of 109920393 is about 479.0263727938.

The spelling of 109920393 in words is "one hundred nine million, nine hundred twenty thousand, three hundred ninety-three".