1055993 has 4 divisors (see below), whose sum is σ = 1069440. Its totient is φ = 1042548.

The previous prime is 1055981. The next prime is 1056007. The reversal of 1055993 is 3995501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3995501 = 331 ⋅12071.

It is a cyclic number.

It is not a de Polignac number, because 1055993 - 2⁸ = 1055737 is a prime.

It is a super-2 number, since 2×1055993² = 2230242432098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6605 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (267360).

2^1055993 is an apocalyptic number.

It is an amenable number.

1055993 is a deficient number, since it is larger than the sum of its proper divisors (13447).

1055993 is an equidigital number, since it uses as much as digits as its factorization.

1055993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13446.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 1055993 is about 1027.6152003547. The cubic root of 1055993 is about 101.8326423832.

It can be divided in two parts, 1055 and 993, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1055993 in words is "one million, fifty-five thousand, nine hundred ninety-three".