1208408423 has 2 divisors, whose sum is σ = 1208408424. Its totient is φ = 1208408422.

The previous prime is 1208408413. The next prime is 1208408507. The reversal of 1208408423 is 3248048021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1208408423 - 2⁸ = 1208408167 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1208408423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1208408413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604204211 + 604204212.

It is an arithmetic number, because the mean of its divisors is an integer number (604204212).

Almost surely, 2^1208408423 is an apocalyptic number.

1208408423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1208408423 is an equidigital number, since it uses as much as digits as its factorization.

1208408423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1208408423 is about 34762.1694230956. The cubic root of 1208408423 is about 1065.1348174381.

The spelling of 1208408423 in words is "one billion, two hundred eight million, four hundred eight thousand, four hundred twenty-three".