97649933 has 2 divisors, whose sum is σ = 97649934. Its totient is φ = 97649932.

The previous prime is 97649917. The next prime is 97649953. The reversal of 97649933 is 33994679.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60171049 + 37478884 = 7757^2 + 6122^2 .

It is a cyclic number.

It is not a de Polignac number, because 97649933 - 2⁴ = 97649917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97649953) 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, 48824966 + 48824967.

It is an arithmetic number, because the mean of its divisors is an integer number (48824967).

Almost surely, 2^97649933 is an apocalyptic number.

It is an amenable number.

97649933 is a deficient number, since it is larger than the sum of its proper divisors (1).

97649933 is an equidigital number, since it uses as much as digits as its factorization.

97649933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 50.

The square root of 97649933 is about 9881.7980651296. The cubic root of 97649933 is about 460.4940077178.

The spelling of 97649933 in words is "ninety-seven million, six hundred forty-nine thousand, nine hundred thirty-three".