423115379 has 2 divisors, whose sum is σ = 423115380. Its totient is φ = 423115378.

The previous prime is 423115369. The next prime is 423115391. The reversal of 423115379 is 973511324.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423115379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (423115339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211557689 + 211557690.

It is an arithmetic number, because the mean of its divisors is an integer number (211557690).

Almost surely, 2^423115379 is an apocalyptic number.

423115379 is a deficient number, since it is larger than the sum of its proper divisors (1).

423115379 is an equidigital number, since it uses as much as digits as its factorization.

423115379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 423115379 is about 20569.7685694322. The cubic root of 423115379 is about 750.7343202045.

The spelling of 423115379 in words is "four hundred twenty-three million, one hundred fifteen thousand, three hundred seventy-nine".