605286397 has 4 divisors (see below), whose sum is σ = 605359836. Its totient is φ = 605212960.

The previous prime is 605286379. The next prime is 605286433. The reversal of 605286397 is 793682506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 396368281 + 208918116 = 19909^2 + 14454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605286397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605286337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22528 + ... + 41449.

It is an arithmetic number, because the mean of its divisors is an integer number (151339959).

Almost surely, 2^605286397 is an apocalyptic number.

It is an amenable number.

605286397 is a deficient number, since it is larger than the sum of its proper divisors (73439).

605286397 is an equidigital number, since it uses as much as digits as its factorization.

605286397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73438.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 605286397 is about 24602.5689105833. The cubic root of 605286397 is about 845.9024924553.

The spelling of 605286397 in words is "six hundred five million, two hundred eighty-six thousand, three hundred ninety-seven".