6340637 has 2 divisors, whose sum is σ = 6340638. Its totient is φ = 6340636.

The previous prime is 6340597. The next prime is 6340657. The reversal of 6340637 is 7360436.

6340637 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6120676 + 219961 = 2474^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 6340637 - 2⁶ = 6340573 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6⁶ + 3⁸ + 4⁸ + 0 + 6⁷ + 3¹¹ + 7⁸ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6340657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170318 + 3170319.

It is an arithmetic number, because the mean of its divisors is an integer number (3170319).

Almost surely, 2^6340637 is an apocalyptic number.

It is an amenable number.

6340637 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340637 is an equidigital number, since it uses as much as digits as its factorization.

6340637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 6340637 is about 2518.0621517349. The cubic root of 6340637 is about 185.0877304864.

The spelling of 6340637 in words is "six million, three hundred forty thousand, six hundred thirty-seven".