602290421 has 2 divisors, whose sum is σ = 602290422. Its totient is φ = 602290420.

The previous prime is 602290417. The next prime is 602290441. The reversal of 602290421 is 124092206.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479391025 + 122899396 = 21895^2 + 11086^2 .

It is a cyclic number.

It is not a de Polignac number, because 602290421 - 2² = 602290417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (602290411) 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, 301145210 + 301145211.

It is an arithmetic number, because the mean of its divisors is an integer number (301145211).

Almost surely, 2^602290421 is an apocalyptic number.

It is an amenable number.

602290421 is a deficient number, since it is larger than the sum of its proper divisors (1).

602290421 is an equidigital number, since it uses as much as digits as its factorization.

602290421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 602290421 is about 24541.6059172989. The cubic root of 602290421 is about 844.5045336005.

The spelling of 602290421 in words is "six hundred two million, two hundred ninety thousand, four hundred twenty-one".