64201963 has 16 divisors (see below), whose sum is σ = 75202560. Its totient is φ = 53676000.

The previous prime is 64201933. The next prime is 64201987. The reversal of 64201963 is 36910246.

It is not a de Polignac number, because 64201963 - 2¹³ = 64193771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64201903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49558 + ... + 50836.

It is an arithmetic number, because the mean of its divisors is an integer number (4700160).

Almost surely, 2^64201963 is an apocalyptic number.

64201963 is a deficient number, since it is larger than the sum of its proper divisors (11000597).

64201963 is a wasteful number, since it uses less digits than its factorization.

64201963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 64201963 is about 8012.6127449166. The cubic root of 64201963 is about 400.4203144347.

The spelling of 64201963 in words is "sixty-four million, two hundred one thousand, nine hundred sixty-three".