23653997 has 2 divisors, whose sum is σ = 23653998. Its totient is φ = 23653996.

The previous prime is 23653991. The next prime is 23654003. The reversal of 23653997 is 79935632.

It is a balanced prime because it is at equal distance from previous prime (23653991) and next prime (23654003).

It can be written as a sum of positive squares in only one way, i.e., 13756681 + 9897316 = 3709^2 + 3146^2 .

It is a cyclic number.

It is not a de Polignac number, because 23653997 - 2⁶ = 23653933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23653991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11826998 + 11826999.

It is an arithmetic number, because the mean of its divisors is an integer number (11826999).

Almost surely, 2^23653997 is an apocalyptic number.

It is an amenable number.

23653997 is a deficient number, since it is larger than the sum of its proper divisors (1).

23653997 is an equidigital number, since it uses as much as digits as its factorization.

23653997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 44.

The square root of 23653997 is about 4863.5374985704. The cubic root of 23653997 is about 287.0570246897.

The spelling of 23653997 in words is "twenty-three million, six hundred fifty-three thousand, nine hundred ninety-seven".