923347409 has 2 divisors, whose sum is σ = 923347410. Its totient is φ = 923347408.

The previous prime is 923347387. The next prime is 923347417. The reversal of 923347409 is 904743329.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 541027600 + 382319809 = 23260^2 + 19553^2 .

It is a cyclic number.

It is not a de Polignac number, because 923347409 - 2¹⁶ = 923281873 is a prime.

It is not a weakly prime, because it can be changed into another prime (923347459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461673704 + 461673705.

It is an arithmetic number, because the mean of its divisors is an integer number (461673705).

Almost surely, 2^923347409 is an apocalyptic number.

It is an amenable number.

923347409 is a deficient number, since it is larger than the sum of its proper divisors (1).

923347409 is an equidigital number, since it uses as much as digits as its factorization.

923347409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 923347409 is about 30386.6320772803. The cubic root of 923347409 is about 973.7669827411.

The spelling of 923347409 in words is "nine hundred twenty-three million, three hundred forty-seven thousand, four hundred nine".