961428 has 24 divisors (see below), whose sum is σ = 2416288. Its totient is φ = 295776.

The previous prime is 961427. The next prime is 961447. The reversal of 961428 is 824169.

It is a plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 961395 and 961404.

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 961428.

It is not an unprimeable number, because it can be changed into a prime (961427) 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 7 ways as a sum of consecutive naturals, for example, 2926 + ... + 3237.

2⁹⁶¹⁴²⁸ is an apocalyptic number.

It is an amenable number.

961428 is an abundant number, since it is smaller than the sum of its proper divisors (1454860).

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

961428 is a wasteful number, since it uses less digits than its factorization.

961428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183 (or 6181 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 961428 is about 980.5243495192. The cubic root of 961428 is about 98.6973719466.

The spelling of 961428 in words is "nine hundred sixty-one thousand, four hundred twenty-eight".