23397733 has 2 divisors, whose sum is σ = 23397734. Its totient is φ = 23397732.

The previous prime is 23397677. The next prime is 23397743. The reversal of 23397733 is 33779332.

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., 18809569 + 4588164 = 4337^2 + 2142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23397733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23397692 and 23397701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23397743) 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, 11698866 + 11698867.

It is an arithmetic number, because the mean of its divisors is an integer number (11698867).

Almost surely, 2^23397733 is an apocalyptic number.

It is an amenable number.

23397733 is a deficient number, since it is larger than the sum of its proper divisors (1).

23397733 is an equidigital number, since it uses as much as digits as its factorization.

23397733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442, while the sum is 37.

The square root of 23397733 is about 4837.1203210175. The cubic root of 23397733 is about 286.0166135393.

The spelling of 23397733 in words is "twenty-three million, three hundred ninety-seven thousand, seven hundred thirty-three".