97239011 has 2 divisors, whose sum is σ = 97239012. Its totient is φ = 97239010.

The previous prime is 97239007. The next prime is 97239013. The reversal of 97239011 is 11093279.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97239011 - 2² = 97239007 is a prime.

Together with 97239013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97239013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48619505 + 48619506.

It is an arithmetic number, because the mean of its divisors is an integer number (48619506).

Almost surely, 2^97239011 is an apocalyptic number.

97239011 is a deficient number, since it is larger than the sum of its proper divisors (1).

97239011 is an equidigital number, since it uses as much as digits as its factorization.

97239011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 97239011 is about 9860.9842815005. The cubic root of 97239011 is about 459.8471625201.

The spelling of 97239011 in words is "ninety-seven million, two hundred thirty-nine thousand, eleven".