65323947 has 16 divisors (see below), whose sum is σ = 96088608. Its totient is φ = 39217920.

The previous prime is 65323943. The next prime is 65323963. The reversal of 65323947 is 74932356.

It is not a de Polignac number, because 65323947 - 2² = 65323943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (65323943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18828 + ... + 22025.

It is an arithmetic number, because the mean of its divisors is an integer number (6005538).

Almost surely, 2^65323947 is an apocalyptic number.

65323947 is a deficient number, since it is larger than the sum of its proper divisors (30764661).

65323947 is a wasteful number, since it uses less digits than its factorization.

65323947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40910.

The product of its digits is 136080, while the sum is 39.

The square root of 65323947 is about 8082.3231190048. The cubic root of 65323947 is about 402.7394190463.

The spelling of 65323947 in words is "sixty-five million, three hundred twenty-three thousand, nine hundred forty-seven".