273423643 has 2 divisors, whose sum is σ = 273423644. Its totient is φ = 273423642.

The previous prime is 273423613. The next prime is 273423649. The reversal of 273423643 is 346324372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 273423643 - 2⁵ = 273423611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 273423599 and 273423608.

It is not a weakly prime, because it can be changed into another prime (273423649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136711821 + 136711822.

It is an arithmetic number, because the mean of its divisors is an integer number (136711822).

Almost surely, 2^273423643 is an apocalyptic number.

273423643 is a deficient number, since it is larger than the sum of its proper divisors (1).

273423643 is an equidigital number, since it uses as much as digits as its factorization.

273423643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 34.

The square root of 273423643 is about 16535.5266925490. The cubic root of 273423643 is about 649.0507983723.

The spelling of 273423643 in words is "two hundred seventy-three million, four hundred twenty-three thousand, six hundred forty-three".