605628731 has 2 divisors, whose sum is σ = 605628732. Its totient is φ = 605628730.

The previous prime is 605628719. The next prime is 605628733. The reversal of 605628731 is 137826506.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 605628731 - 2¹⁰ = 605627707 is a prime.

It is a super-2 number, since 2×605628731² = 733572319625340722, which contains 22 as substring.

Together with 605628733, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (605628733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302814365 + 302814366.

It is an arithmetic number, because the mean of its divisors is an integer number (302814366).

Almost surely, 2^605628731 is an apocalyptic number.

605628731 is a deficient number, since it is larger than the sum of its proper divisors (1).

605628731 is an equidigital number, since it uses as much as digits as its factorization.

605628731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 605628731 is about 24609.5252087479. The cubic root of 605628731 is about 846.0619357696.

The spelling of 605628731 in words is "six hundred five million, six hundred twenty-eight thousand, seven hundred thirty-one".