64610216 has 16 divisors (see below), whose sum is σ = 132157440. Its totient is φ = 29368240.

The previous prime is 64610191. The next prime is 64610239. The reversal of 64610216 is 61201646.

It is a happy number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 367016 + ... + 367191.

It is an arithmetic number, because the mean of its divisors is an integer number (8259840).

Almost surely, 2^64610216 is an apocalyptic number.

It is an amenable number.

64610216 is an abundant number, since it is smaller than the sum of its proper divisors (67547224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64610216 is a wasteful number, since it uses less digits than its factorization.

64610216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734224 (or 734220 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 64610216 is about 8038.0480217525. The cubic root of 64610216 is about 401.2672641970.

The spelling of 64610216 in words is "sixty-four million, six hundred ten thousand, two hundred sixteen".