966438 has 32 divisors (see below), whose sum is σ = 2344320. Its totient is φ = 292680.

The previous prime is 966431. The next prime is 966439. The reversal of 966438 is 834669.

966438 is a `hidden beast` number, since 9 + 6 + 643 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 966438.

It is not an unprimeable number, because it can be changed into a prime (966431) 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 15 ways as a sum of consecutive naturals, for example, 220 + ... + 1407.

It is an arithmetic number, because the mean of its divisors is an integer number (73260).

2⁹⁶⁶⁴³⁸ is an apocalyptic number.

966438 is an abundant number, since it is smaller than the sum of its proper divisors (1377882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

966438 is a wasteful number, since it uses less digits than its factorization.

966438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1643 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 966438 is about 983.0757854815. The cubic root of 966438 is about 98.8685123095.

Subtracting from 966438 its reverse (834669), we obtain a square (131769 = 363²).

The spelling of 966438 in words is "nine hundred sixty-six thousand, four hundred thirty-eight".