1073739 has 4 divisors (see below), whose sum is σ = 1431656. Its totient is φ = 715824.

The previous prime is 1073729. The next prime is 1073773. The reversal of 1073739 is 9373701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9373701 = 3 ⋅3124567.

It is not a de Polignac number, because 1073739 - 2²⁰ = 25163 is a prime.

It is a D-number.

It is a Duffinian number.

1073739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1073729) 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, 178954 + ... + 178959.

It is an arithmetic number, because the mean of its divisors is an integer number (357914).

2^1073739 is an apocalyptic number.

1073739 is a deficient number, since it is larger than the sum of its proper divisors (357917).

1073739 is an equidigital number, since it uses as much as digits as its factorization.

1073739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357916.

The product of its (nonzero) digits is 3969, while the sum is 30.

The square root of 1073739 is about 1036.2137810317. The cubic root of 1073739 is about 102.3999102274.

The spelling of 1073739 in words is "one million, seventy-three thousand, seven hundred thirty-nine".