1031623 has 2 divisors, whose sum is σ = 1031624. Its totient is φ = 1031622.

The previous prime is 1031609. The next prime is 1031629. The reversal of 1031623 is 3261301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1031623 - 2¹⁷ = 900551 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1031597 and 1031606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515811 + 515812.

It is an arithmetic number, because the mean of its divisors is an integer number (515812).

2^1031623 is an apocalyptic number.

1031623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031623 is an equidigital number, since it uses as much as digits as its factorization.

1031623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1031623 is about 1015.6884364804. The cubic root of 1031623 is about 101.0431799162.

Adding to 1031623 its reverse (3261301), we get a palindrome (4292924).

The spelling of 1031623 in words is "one million, thirty-one thousand, six hundred twenty-three".