508990423 has 2 divisors, whose sum is σ = 508990424. Its totient is φ = 508990422.

The previous prime is 508990403. The next prime is 508990481. The reversal of 508990423 is 324099805.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-508990423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (508990403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254495211 + 254495212.

It is an arithmetic number, because the mean of its divisors is an integer number (254495212).

Almost surely, 2^508990423 is an apocalyptic number.

508990423 is a deficient number, since it is larger than the sum of its proper divisors (1).

508990423 is an equidigital number, since it uses as much as digits as its factorization.

508990423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 508990423 is about 22560.8160978277. The cubic root of 508990423 is about 798.4294306368.

The spelling of 508990423 in words is "five hundred eight million, nine hundred ninety thousand, four hundred twenty-three".