20079319 has 4 divisors (see below), whose sum is σ = 21623896. Its totient is φ = 18534744.

The previous prime is 20079313. The next prime is 20079331. The reversal of 20079319 is 91397002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91397002 = 2 ⋅45698501.

It is a cyclic number.

It is not a de Polignac number, because 20079319 - 2¹¹ = 20077271 is a prime.

It is a super-2 number, since 2×20079319² = 806358103007522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20079313) 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, 772269 + ... + 772294.

It is an arithmetic number, because the mean of its divisors is an integer number (5405974).

Almost surely, 2^20079319 is an apocalyptic number.

20079319 is a deficient number, since it is larger than the sum of its proper divisors (1544577).

20079319 is a wasteful number, since it uses less digits than its factorization.

20079319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544576.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 20079319 is about 4480.9953135436. The cubic root of 20079319 is about 271.8001298044.

The spelling of 20079319 in words is "twenty million, seventy-nine thousand, three hundred nineteen".