65684701 has 2 divisors, whose sum is σ = 65684702. Its totient is φ = 65684700.

The previous prime is 65684699. The next prime is 65684737. The reversal of 65684701 is 10748656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 6625476 = 7685^2 + 2574^2 .

It is a cyclic number.

It is not a de Polignac number, because 65684701 - 2¹ = 65684699 is a prime.

Together with 65684699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65684741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32842350 + 32842351.

It is an arithmetic number, because the mean of its divisors is an integer number (32842351).

Almost surely, 2^65684701 is an apocalyptic number.

It is an amenable number.

65684701 is a deficient number, since it is larger than the sum of its proper divisors (1).

65684701 is an equidigital number, since it uses as much as digits as its factorization.

65684701 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 37.

The square root of 65684701 is about 8104.6098610606. The cubic root of 65684701 is about 403.4794397397.

The spelling of 65684701 in words is "sixty-five million, six hundred eighty-four thousand, seven hundred one".