65020347 has 32 divisors (see below), whose sum is σ = 112181760. Its totient is φ = 36447840.

The previous prime is 65020339. The next prime is 65020357. The reversal of 65020347 is 74302056.

It is a happy number.

65020347 is a `hidden beast` number, since 650 + 2 + 0 + 3 + 4 + 7 = 666.

65020347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65020347 - 2³ = 65020339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 65020347.

It is not an unprimeable number, because it can be changed into a prime (65020357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6772 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (3505680).

Almost surely, 2^65020347 is an apocalyptic number.

65020347 is a deficient number, since it is larger than the sum of its proper divisors (47161413).

65020347 is a wasteful number, since it uses less digits than its factorization.

65020347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560 (or 6554 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 65020347 is about 8063.5195169355. The cubic root of 65020347 is about 402.1145251780.

The spelling of 65020347 in words is "sixty-five million, twenty thousand, three hundred forty-seven".