65966394 has 16 divisors (see below), whose sum is σ = 142081632. Its totient is φ = 20297328.

The previous prime is 65966393. The next prime is 65966399. The reversal of 65966394 is 49366956.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (65966393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422784 + ... + 422939.

It is an arithmetic number, because the mean of its divisors is an integer number (8880102).

Almost surely, 2^65966394 is an apocalyptic number.

65966394 is an abundant number, since it is smaller than the sum of its proper divisors (76115238).

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

65966394 is a wasteful number, since it uses less digits than its factorization.

65966394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845741.

The product of its digits is 1049760, while the sum is 48.

The square root of 65966394 is about 8121.9698349600. The cubic root of 65966394 is about 404.0553995525.

The spelling of 65966394 in words is "sixty-five million, nine hundred sixty-six thousand, three hundred ninety-four".