97748311 has 2 divisors, whose sum is σ = 97748312. Its totient is φ = 97748310.

The previous prime is 97748303. The next prime is 97748333. The reversal of 97748311 is 11384779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97748311 - 2³ = 97748303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97740311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48874155 + 48874156.

It is an arithmetic number, because the mean of its divisors is an integer number (48874156).

Almost surely, 2^97748311 is an apocalyptic number.

97748311 is the 4422-nd centered decagonal number.

97748311 is a deficient number, since it is larger than the sum of its proper divisors (1).

97748311 is an equidigital number, since it uses as much as digits as its factorization.

97748311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 97748311 is about 9886.7745498722. The cubic root of 97748311 is about 460.6485982815.

The spelling of 97748311 in words is "ninety-seven million, seven hundred forty-eight thousand, three hundred eleven".