1957343 has 4 divisors (see below), whose sum is σ = 1994328. Its totient is φ = 1920360.

The previous prime is 1957327. The next prime is 1957357. The reversal of 1957343 is 3437591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1957343 - 2⁴ = 1957327 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18413 + ... + 18518.

It is an arithmetic number, because the mean of its divisors is an integer number (498582).

2^1957343 is an apocalyptic number.

1957343 is a deficient number, since it is larger than the sum of its proper divisors (36985).

1957343 is an equidigital number, since it uses as much as digits as its factorization.

1957343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36984.

The product of its digits is 11340, while the sum is 32.

The square root of 1957343 is about 1399.0507496156. The cubic root of 1957343 is about 125.0899193006.

The spelling of 1957343 in words is "one million, nine hundred fifty-seven thousand, three hundred forty-three".