20079349 has 4 divisors (see below), whose sum is σ = 20092300. Its totient is φ = 20066400.

The previous prime is 20079343. The next prime is 20079373. The reversal of 20079349 is 94397002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4223025 + 15856324 = 2055^2 + 3982^2 .

It is a cyclic number.

It is not a de Polignac number, because 20079349 - 2³ = 20079341 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 (20079341) 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, 3774 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (5023075).

Almost surely, 2^20079349 is an apocalyptic number.

It is an amenable number.

20079349 is a deficient number, since it is larger than the sum of its proper divisors (12951).

20079349 is a wasteful number, since it uses less digits than its factorization.

20079349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 20079349 is about 4480.9986610130. The cubic root of 20079349 is about 271.8002651675.

The spelling of 20079349 in words is "twenty million, seventy-nine thousand, three hundred forty-nine".