423197743 has 2 divisors, whose sum is σ = 423197744. Its totient is φ = 423197742.

The previous prime is 423197713. The next prime is 423197821. The reversal of 423197743 is 347791324.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423197743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423197696 and 423197705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423197713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211598871 + 211598872.

It is an arithmetic number, because the mean of its divisors is an integer number (211598872).

Almost surely, 2^423197743 is an apocalyptic number.

423197743 is a deficient number, since it is larger than the sum of its proper divisors (1).

423197743 is an equidigital number, since it uses as much as digits as its factorization.

423197743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 40.

The square root of 423197743 is about 20571.7705363442. The cubic root of 423197743 is about 750.7830299048.

The spelling of 423197743 in words is "four hundred twenty-three million, one hundred ninety-seven thousand, seven hundred forty-three".