958641 has 4 divisors (see below), whose sum is σ = 1278192. Its totient is φ = 639092.

The previous prime is 958637. The next prime is 958667. The reversal of 958641 is 146859.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146859 = 3 ⋅48953.

It is a cyclic number.

It is not a de Polignac number, because 958641 - 2² = 958637 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 958641.

It is not an unprimeable number, because it can be changed into a prime (958141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159771 + ... + 159776.

It is an arithmetic number, because the mean of its divisors is an integer number (319548).

2⁹⁵⁸⁶⁴¹ is an apocalyptic number.

It is an amenable number.

958641 is a deficient number, since it is larger than the sum of its proper divisors (319551).

958641 is a wasteful number, since it uses less digits than its factorization.

958641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319550.

The product of its digits is 8640, while the sum is 33.

The square root of 958641 is about 979.1021397178. The cubic root of 958641 is about 98.6019112374.

The spelling of 958641 in words is "nine hundred fifty-eight thousand, six hundred forty-one".