959381 has 4 divisors (see below), whose sum is σ = 963372. Its totient is φ = 955392.

The previous prime is 959377. The next prime is 959383. The reversal of 959381 is 183959.

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 792100 + 167281 = 890^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 959381 - 2² = 959377 is a prime.

It is a super-2 number, since 2×959381² = 1840823806322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (959383) 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, 1610 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (240843).

2⁹⁵⁹³⁸¹ is an apocalyptic number.

It is an amenable number.

959381 is a deficient number, since it is larger than the sum of its proper divisors (3991).

959381 is a wasteful number, since it uses less digits than its factorization.

959381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3990.

The product of its digits is 9720, while the sum is 35.

The square root of 959381 is about 979.4799640626. The cubic root of 959381 is about 98.6272758413.

The spelling of 959381 in words is "nine hundred fifty-nine thousand, three hundred eighty-one".