923407 has 2 divisors, whose sum is σ = 923408. Its totient is φ = 923406.

The previous prime is 923399. The next prime is 923411. The reversal of 923407 is 704329.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 923407 - 2³ = 923399 is a prime.

923407 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (923437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461703 + 461704.

It is an arithmetic number, because the mean of its divisors is an integer number (461704).

2⁹²³⁴⁰⁷ is an apocalyptic number.

923407 is a deficient number, since it is larger than the sum of its proper divisors (1).

923407 is an equidigital number, since it uses as much as digits as its factorization.

923407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 923407 is about 960.9406849541. The cubic root of 923407 is about 97.3787930617.

The spelling of 923407 in words is "nine hundred twenty-three thousand, four hundred seven".