693407387 has 2 divisors, whose sum is σ = 693407388. Its totient is φ = 693407386.

The previous prime is 693407383. The next prime is 693407389. The reversal of 693407387 is 783704396.

It is a happy number.

693407387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 693407387 - 2² = 693407383 is a prime.

Together with 693407389, 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 (693407383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346703693 + 346703694.

It is an arithmetic number, because the mean of its divisors is an integer number (346703694).

Almost surely, 2^693407387 is an apocalyptic number.

693407387 is a deficient number, since it is larger than the sum of its proper divisors (1).

693407387 is an equidigital number, since it uses as much as digits as its factorization.

693407387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 693407387 is about 26332.6297015699. The cubic root of 693407387 is about 885.1077728456.

The spelling of 693407387 in words is "six hundred ninety-three million, four hundred seven thousand, three hundred eighty-seven".