961398 has 12 divisors (see below), whose sum is σ = 2083068. Its totient is φ = 320460.

The previous prime is 961397. The next prime is 961399. The reversal of 961398 is 893169.

It is an interprime number because it is at equal distance from previous prime (961397) and next prime (961399).

It is a super-2 number, since 2×961398² = 1848572228808, which contains 22 as substring.

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 961398.

It is not an unprimeable number, because it can be changed into a prime (961393) 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 5 ways as a sum of consecutive naturals, for example, 26688 + ... + 26723.

It is an arithmetic number, because the mean of its divisors is an integer number (173589).

2⁹⁶¹³⁹⁸ is an apocalyptic number.

961398 is an abundant number, since it is smaller than the sum of its proper divisors (1121670).

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

961398 is a wasteful number, since it uses less digits than its factorization.

961398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53419 (or 53416 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 961398 is about 980.5090514626. The cubic root of 961398 is about 98.6963453653.

The spelling of 961398 in words is "nine hundred sixty-one thousand, three hundred ninety-eight".