20079379 has 4 divisors (see below), whose sum is σ = 20305080. Its totient is φ = 19853680.

The previous prime is 20079377. The next prime is 20079403. The reversal of 20079379 is 97397002.

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

It is a cyclic number.

It is not a de Polignac number, because 20079379 - 2¹ = 20079377 is a prime.

It is a super-2 number, since 2×20079379² = 806362922051282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20079373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112717 + ... + 112894.

It is an arithmetic number, because the mean of its divisors is an integer number (5076270).

Almost surely, 2^20079379 is an apocalyptic number.

20079379 is a deficient number, since it is larger than the sum of its proper divisors (225701).

20079379 is an equidigital number, since it uses as much as digits as its factorization.

20079379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225700.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 20079379 is about 4481.0020084798. The cubic root of 20079379 is about 271.8004005305.

The spelling of 20079379 in words is "twenty million, seventy-nine thousand, three hundred seventy-nine".