602431691 has 2 divisors, whose sum is σ = 602431692. Its totient is φ = 602431690.

The previous prime is 602431681. The next prime is 602431693. The reversal of 602431691 is 196134206.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-602431691 is a prime.

It is a super-2 number, since 2×602431691² = 725847884642238962, which contains 22 as substring.

Together with 602431693, 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 (602431693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301215845 + 301215846.

It is an arithmetic number, because the mean of its divisors is an integer number (301215846).

Almost surely, 2^602431691 is an apocalyptic number.

602431691 is a deficient number, since it is larger than the sum of its proper divisors (1).

602431691 is an equidigital number, since it uses as much as digits as its factorization.

602431691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 602431691 is about 24544.4839220547. The cubic root of 602431691 is about 844.5705559184.

Adding to 602431691 its reverse (196134206), we get a palindrome (798565897).

The spelling of 602431691 in words is "six hundred two million, four hundred thirty-one thousand, six hundred ninety-one".