109897378 has 8 divisors (see below), whose sum is σ = 166698540. Its totient is φ = 54331200.

The previous prime is 109897373. The next prime is 109897391. The reversal of 109897378 is 873798901.

It can be written as a sum of positive squares in 2 ways, for example, as 95707089 + 14190289 = 9783^2 + 3767^2 .

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 (109897373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308523 + ... + 308878.

Almost surely, 2^109897378 is an apocalyptic number.

109897378 is a deficient number, since it is larger than the sum of its proper divisors (56801162).

109897378 is an equidigital number, since it uses as much as digits as its factorization.

109897378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617492.

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 109897378 is about 10483.1950282345. The cubic root of 109897378 is about 478.9929378044.

The spelling of 109897378 in words is "one hundred nine million, eight hundred ninety-seven thousand, three hundred seventy-eight".