6464537 has 2 divisors, whose sum is σ = 6464538. Its totient is φ = 6464536.

The previous prime is 6464533. The next prime is 6464551. The reversal of 6464537 is 7354646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5973136 + 491401 = 2444^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 6464537 - 2² = 6464533 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6464497 and 6464506.

It is not a weakly prime, because it can be changed into another prime (6464531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232268 + 3232269.

It is an arithmetic number, because the mean of its divisors is an integer number (3232269).

Almost surely, 2^6464537 is an apocalyptic number.

It is an amenable number.

6464537 is a deficient number, since it is larger than the sum of its proper divisors (1).

6464537 is an equidigital number, since it uses as much as digits as its factorization.

6464537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 35.

The square root of 6464537 is about 2542.5453781595. The cubic root of 6464537 is about 186.2855386143.

The spelling of 6464537 in words is "six million, four hundred sixty-four thousand, five hundred thirty-seven".