423203399 has 2 divisors, whose sum is σ = 423203400. Its totient is φ = 423203398.

The previous prime is 423203393. The next prime is 423203437. The reversal of 423203399 is 993302324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423203399 - 2⁴ = 423203383 is a prime.

It is a super-2 number, since 2×423203399² = 358202233850306402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423203393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211601699 + 211601700.

It is an arithmetic number, because the mean of its divisors is an integer number (211601700).

Almost surely, 2^423203399 is an apocalyptic number.

423203399 is a deficient number, since it is larger than the sum of its proper divisors (1).

423203399 is an equidigital number, since it uses as much as digits as its factorization.

423203399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 423203399 is about 20571.9080058219. The cubic root of 423203399 is about 750.7863746059.

The spelling of 423203399 in words is "four hundred twenty-three million, two hundred three thousand, three hundred ninety-nine".