109279406 has 4 divisors (see below), whose sum is σ = 163919112. Its totient is φ = 54639702.

The previous prime is 109279381. The next prime is 109279409. The reversal of 109279406 is 604972901.

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

It is a self number, because there is not a number n which added to its sum of digits gives 109279406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109279409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27319850 + ... + 27319853.

It is an arithmetic number, because the mean of its divisors is an integer number (40979778).

Almost surely, 2^109279406 is an apocalyptic number.

109279406 is a deficient number, since it is larger than the sum of its proper divisors (54639706).

109279406 is an equidigital number, since it uses as much as digits as its factorization.

109279406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54639705.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 109279406 is about 10453.6790652861. The cubic root of 109279406 is about 478.0934295643.

The spelling of 109279406 in words is "one hundred nine million, two hundred seventy-nine thousand, four hundred six".