608395421 has 2 divisors, whose sum is σ = 608395422. Its totient is φ = 608395420.

The previous prime is 608395399. The next prime is 608395483. The reversal of 608395421 is 124593806.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326524900 + 281870521 = 18070^2 + 16789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-608395421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (608395121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304197710 + 304197711.

It is an arithmetic number, because the mean of its divisors is an integer number (304197711).

Almost surely, 2^608395421 is an apocalyptic number.

It is an amenable number.

608395421 is a deficient number, since it is larger than the sum of its proper divisors (1).

608395421 is an equidigital number, since it uses as much as digits as its factorization.

608395421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 608395421 is about 24665.6729281810. The cubic root of 608395421 is about 847.3483320509.

The spelling of 608395421 in words is "six hundred eight million, three hundred ninety-five thousand, four hundred twenty-one".