63345397 has 2 divisors, whose sum is σ = 63345398. Its totient is φ = 63345396.

The previous prime is 63345379. The next prime is 63345421. The reversal of 63345397 is 79354336.

Together with previous prime (63345379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59814756 + 3530641 = 7734^2 + 1879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63345397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63345377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31672698 + 31672699.

It is an arithmetic number, because the mean of its divisors is an integer number (31672699).

Almost surely, 2^63345397 is an apocalyptic number.

It is an amenable number.

63345397 is a deficient number, since it is larger than the sum of its proper divisors (1).

63345397 is an equidigital number, since it uses as much as digits as its factorization.

63345397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 40.

The square root of 63345397 is about 7958.9821585426. The cubic root of 63345397 is about 398.6315675703.

The spelling of 63345397 in words is "sixty-three million, three hundred forty-five thousand, three hundred ninety-seven".