1573963 has 4 divisors (see below), whose sum is σ = 1624768. Its totient is φ = 1523160.

The previous prime is 1573961. The next prime is 1573969. The reversal of 1573963 is 3693751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3693751 = 359 ⋅10289.

It is a cyclic number.

It is not a de Polignac number, because 1573963 - 2¹ = 1573961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1573961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25356 + ... + 25417.

It is an arithmetic number, because the mean of its divisors is an integer number (406192).

2^1573963 is an apocalyptic number.

1573963 is a deficient number, since it is larger than the sum of its proper divisors (50805).

1573963 is an equidigital number, since it uses as much as digits as its factorization.

1573963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50804.

The product of its digits is 17010, while the sum is 34.

The square root of 1573963 is about 1254.5768210835. The cubic root of 1573963 is about 116.3227978918.

The spelling of 1573963 in words is "one million, five hundred seventy-three thousand, nine hundred sixty-three".