65393945 has 8 divisors (see below), whose sum is σ = 81884736. Its totient is φ = 50040496.

The previous prime is 65393941. The next prime is 65393947. The reversal of 65393945 is 54939356.

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 65393945 - 2² = 65393941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65393896 and 65393905.

It is not an unprimeable number, because it can be changed into a prime (65393941) 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, 284207 + ... + 284436.

It is an arithmetic number, because the mean of its divisors is an integer number (10235592).

Almost surely, 2^65393945 is an apocalyptic number.

It is an amenable number.

65393945 is a deficient number, since it is larger than the sum of its proper divisors (16490791).

65393945 is a wasteful number, since it uses less digits than its factorization.

65393945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568671.

The product of its digits is 437400, while the sum is 44.

The square root of 65393945 is about 8086.6522739636. The cubic root of 65393945 is about 402.8832197594.

The spelling of 65393945 in words is "sixty-five million, three hundred ninety-three thousand, nine hundred forty-five".