65940963 has 32 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 37620000.

The previous prime is 65940961. The next prime is 65940971. The reversal of 65940963 is 36904956.

It is not a de Polignac number, because 65940963 - 2¹ = 65940961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65940961) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 157168 + ... + 157586.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^65940963 is an apocalyptic number.

65940963 is a deficient number, since it is larger than the sum of its proper divisors (35665437).

65940963 is a wasteful number, since it uses less digits than its factorization.

65940963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 65940963 is about 8120.4041155598. The cubic root of 65940963 is about 404.0034698098.

The spelling of 65940963 in words is "sixty-five million, nine hundred forty thousand, nine hundred sixty-three".