605674721 has 2 divisors, whose sum is σ = 605674722. Its totient is φ = 605674720.

The previous prime is 605674717. The next prime is 605674733. The reversal of 605674721 is 127476506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 597264721 + 8410000 = 24439^2 + 2900^2 .

It is a cyclic number.

It is not a de Polignac number, because 605674721 - 2² = 605674717 is a prime.

It is equal to p_31605698 and since 605674721 and 31605698 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (605673721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302837360 + 302837361.

It is an arithmetic number, because the mean of its divisors is an integer number (302837361).

Almost surely, 2^605674721 is an apocalyptic number.

It is an amenable number.

605674721 is a deficient number, since it is larger than the sum of its proper divisors (1).

605674721 is an equidigital number, since it uses as much as digits as its factorization.

605674721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 605674721 is about 24610.4595853064. The cubic root of 605674721 is about 846.0833512021.

The spelling of 605674721 in words is "six hundred five million, six hundred seventy-four thousand, seven hundred twenty-one".