64498613 has 2 divisors, whose sum is σ = 64498614. Its totient is φ = 64498612.

The previous prime is 64498607. The next prime is 64498633. The reversal of 64498613 is 31689446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63075364 + 1423249 = 7942^2 + 1193^2 .

It is a cyclic number.

It is not a de Polignac number, because 64498613 - 2⁶ = 64498549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64498633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32249306 + 32249307.

It is an arithmetic number, because the mean of its divisors is an integer number (32249307).

Almost surely, 2^64498613 is an apocalyptic number.

It is an amenable number.

64498613 is a deficient number, since it is larger than the sum of its proper divisors (1).

64498613 is an equidigital number, since it uses as much as digits as its factorization.

64498613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 64498613 is about 8031.1028507920. The cubic root of 64498613 is about 401.0360910545.

The spelling of 64498613 in words is "sixty-four million, four hundred ninety-eight thousand, six hundred thirteen".