20093279 has 4 divisors (see below), whose sum is σ = 21150840. Its totient is φ = 19035720.

The previous prime is 20093267. The next prime is 20093291. The reversal of 20093279 is 97239002.

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

It is an interprime number because it is at equal distance from previous prime (20093267) and next prime (20093291).

It is not a de Polignac number, because 20093279 - 2⁸ = 20093023 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 (20093219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528752 + ... + 528789.

It is an arithmetic number, because the mean of its divisors is an integer number (5287710).

Almost surely, 2^20093279 is an apocalyptic number.

20093279 is a deficient number, since it is larger than the sum of its proper divisors (1057561).

20093279 is a wasteful number, since it uses less digits than its factorization.

20093279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057560.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 20093279 is about 4482.5527325398. The cubic root of 20093279 is about 271.8631042314.

The spelling of 20093279 in words is "twenty million, ninety-three thousand, two hundred seventy-nine".