693427487 has 2 divisors, whose sum is σ = 693427488. Its totient is φ = 693427486.

The previous prime is 693427481. The next prime is 693427507. The reversal of 693427487 is 784724396.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-693427487 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 (693427481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346713743 + 346713744.

It is an arithmetic number, because the mean of its divisors is an integer number (346713744).

Almost surely, 2^693427487 is an apocalyptic number.

693427487 is a deficient number, since it is larger than the sum of its proper divisors (1).

693427487 is an equidigital number, since it uses as much as digits as its factorization.

693427487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 50.

The square root of 693427487 is about 26333.0113545717. The cubic root of 693427487 is about 885.1163250544.

The spelling of 693427487 in words is "six hundred ninety-three million, four hundred twenty-seven thousand, four hundred eighty-seven".