99197477 has 2 divisors, whose sum is σ = 99197478. Its totient is φ = 99197476.

The previous prime is 99197447. The next prime is 99197507. The reversal of 99197477 is 77479199.

It is a balanced prime because it is at equal distance from previous prime (99197447) and next prime (99197507).

It can be written as a sum of positive squares in only one way, i.e., 56085121 + 43112356 = 7489^2 + 6566^2 .

It is a cyclic number.

It is not a de Polignac number, because 99197477 - 2²⁶ = 32088613 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 (99197447) 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, 49598738 + 49598739.

It is an arithmetic number, because the mean of its divisors is an integer number (49598739).

Almost surely, 2^99197477 is an apocalyptic number.

It is an amenable number.

99197477 is a deficient number, since it is larger than the sum of its proper divisors (1).

99197477 is an equidigital number, since it uses as much as digits as its factorization.

99197477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1000188, while the sum is 53.

The square root of 99197477 is about 9959.7930199377. The cubic root of 99197477 is about 462.9138863368.

The spelling of 99197477 in words is "ninety-nine million, one hundred ninety-seven thousand, four hundred seventy-seven".