97799747 has 2 divisors, whose sum is σ = 97799748. Its totient is φ = 97799746.

The previous prime is 97799729. The next prime is 97799773. The reversal of 97799747 is 74799779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97799747 - 2⁶ = 97799683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97799777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48899873 + 48899874.

It is an arithmetic number, because the mean of its divisors is an integer number (48899874).

Almost surely, 2^97799747 is an apocalyptic number.

97799747 is a deficient number, since it is larger than the sum of its proper divisors (1).

97799747 is an equidigital number, since it uses as much as digits as its factorization.

97799747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7001316, while the sum is 59.

The square root of 97799747 is about 9889.3754605637. The cubic root of 97799747 is about 460.7293831950.

The spelling of 97799747 in words is "ninety-seven million, seven hundred ninety-nine thousand, seven hundred forty-seven".