97249811 has 2 divisors, whose sum is σ = 97249812. Its totient is φ = 97249810.

The previous prime is 97249807. The next prime is 97249813. The reversal of 97249811 is 11894279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97249811 - 2² = 97249807 is a prime.

It is a Sophie Germain prime.

Together with 97249813, 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 (97249813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48624905 + 48624906.

It is an arithmetic number, because the mean of its divisors is an integer number (48624906).

Almost surely, 2^97249811 is an apocalyptic number.

97249811 is a deficient number, since it is larger than the sum of its proper divisors (1).

97249811 is an equidigital number, since it uses as much as digits as its factorization.

97249811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 97249811 is about 9861.5318789730. The cubic root of 97249811 is about 459.8641864335.

The spelling of 97249811 in words is "ninety-seven million, two hundred forty-nine thousand, eight hundred eleven".