605887421 has 2 divisors, whose sum is σ = 605887422. Its totient is φ = 605887420.

The previous prime is 605887411. The next prime is 605887433. The reversal of 605887421 is 124788506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602162521 + 3724900 = 24539^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 605887421 - 2⁶ = 605887357 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 (605887411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302943710 + 302943711.

It is an arithmetic number, because the mean of its divisors is an integer number (302943711).

Almost surely, 2^605887421 is an apocalyptic number.

It is an amenable number.

605887421 is a deficient number, since it is larger than the sum of its proper divisors (1).

605887421 is an equidigital number, since it uses as much as digits as its factorization.

605887421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 605887421 is about 24614.7805393426. The cubic root of 605887421 is about 846.1823817325.

The spelling of 605887421 in words is "six hundred five million, eight hundred eighty-seven thousand, four hundred twenty-one".