20353379 has 2 divisors, whose sum is σ = 20353380. Its totient is φ = 20353378.

The previous prime is 20353373. The next prime is 20353381. The reversal of 20353379 is 97335302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20353379 - 2¹² = 20349283 is a prime.

Together with 20353381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20353373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176689 + 10176690.

It is an arithmetic number, because the mean of its divisors is an integer number (10176690).

Almost surely, 2^20353379 is an apocalyptic number.

20353379 is a deficient number, since it is larger than the sum of its proper divisors (1).

20353379 is an equidigital number, since it uses as much as digits as its factorization.

20353379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 32.

The square root of 20353379 is about 4511.4719327510. The cubic root of 20353379 is about 273.0311342166.

The spelling of 20353379 in words is "twenty million, three hundred fifty-three thousand, three hundred seventy-nine".