65899946 has 16 divisors (see below), whose sum is σ = 113377344. Its totient is φ = 28141344.

The previous prime is 65899937. The next prime is 65899949. The reversal of 65899946 is 64999856.

It is a junction number, because it is equal to n+sod(n) for n = 65899891 and 65899900.

It is not an unprimeable number, because it can be changed into a prime (65899949) 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, 4355 + ... + 12278.

It is an arithmetic number, because the mean of its divisors is an integer number (7086084).

Almost surely, 2^65899946 is an apocalyptic number.

65899946 is a deficient number, since it is larger than the sum of its proper divisors (47477398).

65899946 is a wasteful number, since it uses less digits than its factorization.

65899946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16925.

The product of its digits is 4199040, while the sum is 56.

The square root of 65899946 is about 8117.8781710494. The cubic root of 65899946 is about 403.9196855345.

The spelling of 65899946 in words is "sixty-five million, eight hundred ninety-nine thousand, nine hundred forty-six".