965381 has 4 divisors (see below), whose sum is σ = 998700. Its totient is φ = 932064.

The previous prime is 965369. The next prime is 965399. The reversal of 965381 is 183569.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217156 + 748225 = 466^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 965381 - 2⁶ = 965317 is a prime.

It is a super-2 number, since 2×965381² = 1863920950322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16616 + ... + 16673.

It is an arithmetic number, because the mean of its divisors is an integer number (249675).

2⁹⁶⁵³⁸¹ is an apocalyptic number.

It is an amenable number.

965381 is a deficient number, since it is larger than the sum of its proper divisors (33319).

965381 is a wasteful number, since it uses less digits than its factorization.

965381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33318.

The product of its digits is 6480, while the sum is 32.

The square root of 965381 is about 982.5380399761. The cubic root of 965381 is about 98.8324547664.

The spelling of 965381 in words is "nine hundred sixty-five thousand, three hundred eighty-one".