65402773 has 2 divisors, whose sum is σ = 65402774. Its totient is φ = 65402772.

The previous prime is 65402767. The next prime is 65402783. The reversal of 65402773 is 37720456.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47238129 + 18164644 = 6873^2 + 4262^2 .

It is a cyclic number.

It is not a de Polignac number, because 65402773 - 2²¹ = 63305621 is a prime.

It is equal to p_3862843 and since 65402773 and 3862843 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65402783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32701386 + 32701387.

It is an arithmetic number, because the mean of its divisors is an integer number (32701387).

Almost surely, 2^65402773 is an apocalyptic number.

It is an amenable number.

65402773 is a deficient number, since it is larger than the sum of its proper divisors (1).

65402773 is an equidigital number, since it uses as much as digits as its factorization.

65402773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 65402773 is about 8087.1980932830. The cubic root of 65402773 is about 402.9013483136.

The spelling of 65402773 in words is "sixty-five million, four hundred two thousand, seven hundred seventy-three".