421120589 has 2 divisors, whose sum is σ = 421120590. Its totient is φ = 421120588.

The previous prime is 421120489. The next prime is 421120627. The reversal of 421120589 is 985021124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415752100 + 5368489 = 20390^2 + 2317^2 .

It is a cyclic number.

It is not a de Polignac number, because 421120589 - 2⁸ = 421120333 is a prime.

It is a super-3 number, since 3×421120589³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421120289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210560294 + 210560295.

It is an arithmetic number, because the mean of its divisors is an integer number (210560295).

Almost surely, 2^421120589 is an apocalyptic number.

It is an amenable number.

421120589 is a deficient number, since it is larger than the sum of its proper divisors (1).

421120589 is an equidigital number, since it uses as much as digits as its factorization.

421120589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 421120589 is about 20521.2228924107. Note that the first 3 decimals coincide. The cubic root of 421120589 is about 749.5526748830.

The spelling of 421120589 in words is "four hundred twenty-one million, one hundred twenty thousand, five hundred eighty-nine".