65349947 has 8 divisors (see below), whose sum is σ = 70468944. Its totient is φ = 60244128.

The previous prime is 65349919. The next prime is 65349961. The reversal of 65349947 is 74994356.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65349947 - 2⁶ = 65349883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65349917) 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, 8633 + ... + 14325.

It is an arithmetic number, because the mean of its divisors is an integer number (8808618).

Almost surely, 2^65349947 is an apocalyptic number.

65349947 is a deficient number, since it is larger than the sum of its proper divisors (5118997).

65349947 is a wasteful number, since it uses less digits than its factorization.

65349947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589.

The product of its digits is 816480, while the sum is 47.

The square root of 65349947 is about 8083.9314074279. The cubic root of 65349947 is about 402.7928442522.

The spelling of 65349947 in words is "sixty-five million, three hundred forty-nine thousand, nine hundred forty-seven".