23354809 has 2 divisors, whose sum is σ = 23354810. Its totient is φ = 23354808.

The previous prime is 23354791. The next prime is 23354813. The reversal of 23354809 is 90845332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17935225 + 5419584 = 4235^2 + 2328^2 .

It is a cyclic number.

It is not a de Polignac number, because 23354809 - 2⁵ = 23354777 is a prime.

It is not a weakly prime, because it can be changed into another prime (23354869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11677404 + 11677405.

It is an arithmetic number, because the mean of its divisors is an integer number (11677405).

Almost surely, 2^23354809 is an apocalyptic number.

It is an amenable number.

23354809 is a deficient number, since it is larger than the sum of its proper divisors (1).

23354809 is an equidigital number, since it uses as much as digits as its factorization.

23354809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 23354809 is about 4832.6813468301. The cubic root of 23354809 is about 285.8416038164.

The spelling of 23354809 in words is "twenty-three million, three hundred fifty-four thousand, eight hundred nine".