64961205 has 16 divisors (see below), whose sum is σ = 104579520. Its totient is φ = 34433424.

The previous prime is 64961161. The next prime is 64961227. The reversal of 64961205 is 50216946.

It is not a de Polignac number, because 64961205 - 2¹⁷ = 64830133 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398454 + ... + 398616.

It is an arithmetic number, because the mean of its divisors is an integer number (6536220).

Almost surely, 2^64961205 is an apocalyptic number.

It is an amenable number.

64961205 is a deficient number, since it is larger than the sum of its proper divisors (39618315).

64961205 is an frugal number, since it uses more digits than its factorization.

64961205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 64961205 is about 8059.8514254296. The cubic root of 64961205 is about 401.9925681159.

The spelling of 64961205 in words is "sixty-four million, nine hundred sixty-one thousand, two hundred five".