23281807 has 2 divisors, whose sum is σ = 23281808. Its totient is φ = 23281806.

The previous prime is 23281799. The next prime is 23281829. The reversal of 23281807 is 70818232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23281807 - 2³ = 23281799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23282807) 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, 11640903 + 11640904.

It is an arithmetic number, because the mean of its divisors is an integer number (11640904).

Almost surely, 2^23281807 is an apocalyptic number.

23281807 is a deficient number, since it is larger than the sum of its proper divisors (1).

23281807 is an equidigital number, since it uses as much as digits as its factorization.

23281807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 23281807 is about 4825.1224854919. The cubic root of 23281807 is about 285.5434669532.

The spelling of 23281807 in words is "twenty-three million, two hundred eighty-one thousand, eight hundred seven".