6397419437 has 2 divisors, whose sum is σ = 6397419438. Its totient is φ = 6397419436.

The previous prime is 6397419409. The next prime is 6397419503. The reversal of 6397419437 is 7349147936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6391362916 + 6056521 = 79946^2 + 2461^2 .

It is a cyclic number.

It is not a de Polignac number, because 6397419437 - 2⁸ = 6397419181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6397419407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198709718 + 3198709719.

It is an arithmetic number, because the mean of its divisors is an integer number (3198709719).

Almost surely, 2^6397419437 is an apocalyptic number.

It is an amenable number.

6397419437 is a deficient number, since it is larger than the sum of its proper divisors (1).

6397419437 is an equidigital number, since it uses as much as digits as its factorization.

6397419437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 53.

The square root of 6397419437 is about 79983.8698551152. The cubic root of 6397419437 is about 1856.3859600566.

The spelling of 6397419437 in words is "six billion, three hundred ninety-seven million, four hundred nineteen thousand, four hundred thirty-seven".