109670399 has 4 divisors (see below), whose sum is σ = 110695464. Its totient is φ = 108645336.

The previous prime is 109670333. The next prime is 109670423. The reversal of 109670399 is 993076901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109670399 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 (109670999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512372 + ... + 512585.

It is an arithmetic number, because the mean of its divisors is an integer number (27673866).

Almost surely, 2^109670399 is an apocalyptic number.

109670399 is a deficient number, since it is larger than the sum of its proper divisors (1025065).

109670399 is a wasteful number, since it uses less digits than its factorization.

109670399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025064.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 109670399 is about 10472.3635823056. The cubic root of 109670399 is about 478.6629442655.

The spelling of 109670399 in words is "one hundred nine million, six hundred seventy thousand, three hundred ninety-nine".