1073731 has 4 divisors (see below), whose sum is σ = 1084464. Its totient is φ = 1063000.

The previous prime is 1073729. The next prime is 1073773. The reversal of 1073731 is 1373701.

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 1073731 - 2¹ = 1073729 is a prime.

It is a super-2 number, since 2×1073731² = 2305796520722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1073711) 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, 5215 + ... + 5416.

It is an arithmetic number, because the mean of its divisors is an integer number (271116).

2^1073731 is an apocalyptic number.

1073731 is a deficient number, since it is larger than the sum of its proper divisors (10733).

1073731 is a wasteful number, since it uses less digits than its factorization.

1073731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10732.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 1073731 is about 1036.2099208172. The cubic root of 1073731 is about 102.3996559132.

The spelling of 1073731 in words is "one million, seventy-three thousand, seven hundred thirty-one".