65402 has 8 divisors (see below), whose sum is σ = 100116. Its totient is φ = 32032.

The previous prime is 65393. The next prime is 65407. The reversal of 65402 is 20456.

It can be written as a sum of positive squares in 2 ways, for example, as 63001 + 2401 = 251^2 + 49^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65402.

It is not an unprimeable number, because it can be changed into a prime (65407) 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 3 ways as a sum of consecutive naturals, for example, 203 + ... + 414.

2⁶⁵⁴⁰² is an apocalyptic number.

65402 is a deficient number, since it is larger than the sum of its proper divisors (34714).

65402 is a wasteful number, since it uses less digits than its factorization.

65402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 65402 is about 255.7381473304. The cubic root of 65402 is about 40.2899761001.

Adding to 65402 its reverse (20456), we get a palindrome (85858).

The spelling of 65402 in words is "sixty-five thousand, four hundred two".