1039723 has 4 divisors (see below), whose sum is σ = 1041768. Its totient is φ = 1037680.

The previous prime is 1039681. The next prime is 1039733. The reversal of 1039723 is 3279301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3279301 = 313 ⋅10477.

It is a cyclic number.

It is not a de Polignac number, because 1039723 - 2¹³ = 1031531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1039733) 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, 408 + ... + 1498.

It is an arithmetic number, because the mean of its divisors is an integer number (260442).

2^1039723 is an apocalyptic number.

1039723 is a deficient number, since it is larger than the sum of its proper divisors (2045).

1039723 is an equidigital number, since it uses as much as digits as its factorization.

1039723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 1039723 is about 1019.6680832506. The cubic root of 1039723 is about 101.3069445463.

The spelling of 1039723 in words is "one million, thirty-nine thousand, seven hundred twenty-three".