23073649 has 2 divisors, whose sum is σ = 23073650. Its totient is φ = 23073648.

The previous prime is 23073643. The next prime is 23073683. The reversal of 23073649 is 94637032.

It is an a-pointer prime, because the next prime (23073683) can be obtained adding 23073649 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22496049 + 577600 = 4743^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 23073649 - 2⁷ = 23073521 is a prime.

It is not a weakly prime, because it can be changed into another prime (23073643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11536824 + 11536825.

It is an arithmetic number, because the mean of its divisors is an integer number (11536825).

Almost surely, 2^23073649 is an apocalyptic number.

It is an amenable number.

23073649 is a deficient number, since it is larger than the sum of its proper divisors (1).

23073649 is an equidigital number, since it uses as much as digits as its factorization.

23073649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 23073649 is about 4803.5038253342. The cubic root of 23073649 is about 284.6899223274.

The spelling of 23073649 in words is "twenty-three million, seventy-three thousand, six hundred forty-nine".