109798415 has 4 divisors (see below), whose sum is σ = 131758104. Its totient is φ = 87838728.

The previous prime is 109798411. The next prime is 109798433. The reversal of 109798415 is 514897901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 514897901 = 7 ⋅73556843.

It is a cyclic number.

It is not a de Polignac number, because 109798415 - 2² = 109798411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109798411) 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, 10979837 + ... + 10979846.

It is an arithmetic number, because the mean of its divisors is an integer number (32939526).

Almost surely, 2^109798415 is an apocalyptic number.

109798415 is a deficient number, since it is larger than the sum of its proper divisors (21959689).

109798415 is an equidigital number, since it uses as much as digits as its factorization.

109798415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21959688.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 109798415 is about 10478.4738869742. The cubic root of 109798415 is about 478.8491163144.

The spelling of 109798415 in words is "one hundred nine million, seven hundred ninety-eight thousand, four hundred fifteen".