64802537 has 2 divisors, whose sum is σ = 64802538. Its totient is φ = 64802536.

The previous prime is 64802459. The next prime is 64802561. The reversal of 64802537 is 73520846.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50993881 + 13808656 = 7141^2 + 3716^2 .

It is a cyclic number.

It is not a de Polignac number, because 64802537 - 2¹⁴ = 64786153 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64802497 and 64802506.

It is not a weakly prime, because it can be changed into another prime (64802587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32401268 + 32401269.

It is an arithmetic number, because the mean of its divisors is an integer number (32401269).

Almost surely, 2^64802537 is an apocalyptic number.

It is an amenable number.

64802537 is a deficient number, since it is larger than the sum of its proper divisors (1).

64802537 is an equidigital number, since it uses as much as digits as its factorization.

64802537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 64802537 is about 8050.0022981363. The cubic root of 64802537 is about 401.6650118062.

The spelling of 64802537 in words is "sixty-four million, eight hundred two thousand, five hundred thirty-seven".