62640317 has 2 divisors, whose sum is σ = 62640318. Its totient is φ = 62640316.

The previous prime is 62640311. The next prime is 62640323. The reversal of 62640317 is 71304626.

It is a balanced prime because it is at equal distance from previous prime (62640311) and next prime (62640323).

It can be written as a sum of positive squares in only one way, i.e., 56715961 + 5924356 = 7531^2 + 2434^2 .

It is a cyclic number.

It is not a de Polignac number, because 62640317 - 2¹⁰ = 62639293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 62640317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (62640311) 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, 31320158 + 31320159.

It is an arithmetic number, because the mean of its divisors is an integer number (31320159).

Almost surely, 2^62640317 is an apocalyptic number.

It is an amenable number.

62640317 is a deficient number, since it is larger than the sum of its proper divisors (1).

62640317 is an equidigital number, since it uses as much as digits as its factorization.

62640317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 62640317 is about 7914.5636013617. The cubic root of 62640317 is about 397.1470268219.

The spelling of 62640317 in words is "sixty-two million, six hundred forty thousand, three hundred seventeen".