961401 has 16 divisors (see below), whose sum is σ = 1551744. Its totient is φ = 516864.

The previous prime is 961399. The next prime is 961427. The reversal of 961401 is 104169.

It is not a de Polignac number, because 961401 - 2¹ = 961399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961401.

It is not an unprimeable number, because it can be changed into a prime (961451) 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, 990 + ... + 1703.

It is an arithmetic number, because the mean of its divisors is an integer number (96984).

2⁹⁶¹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

961401 is a deficient number, since it is larger than the sum of its proper divisors (590343).

961401 is a wasteful number, since it uses less digits than its factorization.

961401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 961401 is about 980.5105812790. The cubic root of 961401 is about 98.6964480244.

It can be divided in two parts, 96140 and 1, that added together give a triangular number (96141 = T₄₃₈).

The spelling of 961401 in words is "nine hundred sixty-one thousand, four hundred one".