1090739 has 4 divisors (see below), whose sum is σ = 1174656. Its totient is φ = 1006824.

The previous prime is 1090721. The next prime is 1090757. The reversal of 1090739 is 9370901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9370901 = 79 ⋅118619.

It is an interprime number because it is at equal distance from previous prime (1090721) and next prime (1090757).

It is not a de Polignac number, because 1090739 - 2⁸ = 1090483 is a prime.

It is a super-2 number, since 2×1090739² = 2379423132242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1090709) 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, 41939 + ... + 41964.

It is an arithmetic number, because the mean of its divisors is an integer number (293664).

2^1090739 is an apocalyptic number.

1090739 is a deficient number, since it is larger than the sum of its proper divisors (83917).

1090739 is an equidigital number, since it uses as much as digits as its factorization.

1090739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83916.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 1090739 is about 1044.3845077365. The cubic root of 1090739 is about 102.9374993933.

The spelling of 1090739 in words is "one million, ninety thousand, seven hundred thirty-nine".