65728933 has 2 divisors, whose sum is σ = 65728934. Its totient is φ = 65728932.

The previous prime is 65728931. The next prime is 65728969. The reversal of 65728933 is 33982756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63968004 + 1760929 = 7998^2 + 1327^2 .

It is a cyclic number.

It is not a de Polignac number, because 65728933 - 2¹ = 65728931 is a prime.

Together with 65728931, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 65728933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65728931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32864466 + 32864467.

It is an arithmetic number, because the mean of its divisors is an integer number (32864467).

Almost surely, 2^65728933 is an apocalyptic number.

It is an amenable number.

65728933 is a deficient number, since it is larger than the sum of its proper divisors (1).

65728933 is an equidigital number, since it uses as much as digits as its factorization.

65728933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 65728933 is about 8107.3382191691. The cubic root of 65728933 is about 403.5699869439.

The spelling of 65728933 in words is "sixty-five million, seven hundred twenty-eight thousand, nine hundred thirty-three".