63672397 has 2 divisors, whose sum is σ = 63672398. Its totient is φ = 63672396.

The previous prime is 63672391. The next prime is 63672407. The reversal of 63672397 is 79327636.

63672397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45981961 + 17690436 = 6781^2 + 4206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63672397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63672391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31836198 + 31836199.

It is an arithmetic number, because the mean of its divisors is an integer number (31836199).

Almost surely, 2^63672397 is an apocalyptic number.

It is an amenable number.

63672397 is a deficient number, since it is larger than the sum of its proper divisors (1).

63672397 is an equidigital number, since it uses as much as digits as its factorization.

63672397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 43.

The square root of 63672397 is about 7979.4985431417. The cubic root of 63672397 is about 399.3163258900.

The spelling of 63672397 in words is "sixty-three million, six hundred seventy-two thousand, three hundred ninety-seven".