65948849 has 4 divisors (see below), whose sum is σ = 67352064. Its totient is φ = 64545636.

The previous prime is 65948803. The next prime is 65948851. The reversal of 65948849 is 94884956.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65948849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65948849.

It is not an unprimeable number, because it can be changed into a prime (65948249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701537 + ... + 701630.

It is an arithmetic number, because the mean of its divisors is an integer number (16838016).

Almost surely, 2^65948849 is an apocalyptic number.

It is an amenable number.

65948849 is a deficient number, since it is larger than the sum of its proper divisors (1403215).

65948849 is a wasteful number, since it uses less digits than its factorization.

65948849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403214.

The product of its digits is 2488320, while the sum is 53.

The square root of 65948849 is about 8120.8896680105. The cubic root of 65948849 is about 404.0195743383.

The spelling of 65948849 in words is "sixty-five million, nine hundred forty-eight thousand, eight hundred forty-nine".