1071993 has 8 divisors (see below), whose sum is σ = 1539328. Its totient is φ = 659664.

The previous prime is 1071991. The next prime is 1072009. The reversal of 1071993 is 3991701.

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

It is not a de Polignac number, because 1071993 - 2¹ = 1071991 is a prime.

It is a super-2 number, since 2×1071993² = 2298337984098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1071993.

It is not an unprimeable number, because it can be changed into a prime (1071991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13705 + ... + 13782.

It is an arithmetic number, because the mean of its divisors is an integer number (192416).

2^1071993 is an apocalyptic number.

1071993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1071993 is a deficient number, since it is larger than the sum of its proper divisors (467335).

1071993 is a wasteful number, since it uses less digits than its factorization.

1071993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27503.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 1071993 is about 1035.3709480181. The cubic root of 1071993 is about 102.3443761728.

The spelling of 1071993 in words is "one million, seventy-one thousand, nine hundred ninety-three".