1961373 has 8 divisors (see below), whose sum is σ = 2647008. Its totient is φ = 1291664.

The previous prime is 1961363. The next prime is 1961381. The reversal of 1961373 is 3731691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1961373 - 2²⁰ = 912797 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1961373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3690 + ... + 4187.

It is an arithmetic number, because the mean of its divisors is an integer number (330876).

2^1961373 is an apocalyptic number.

It is an amenable number.

1961373 is a deficient number, since it is larger than the sum of its proper divisors (685635).

1961373 is an equidigital number, since it uses as much as digits as its factorization.

1961373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963.

The product of its digits is 3402, while the sum is 30.

The square root of 1961373 is about 1400.4902712979. The cubic root of 1961373 is about 125.1757102249.

The spelling of 1961373 in words is "one million, nine hundred sixty-one thousand, three hundred seventy-three".