99837449 has 2 divisors, whose sum is σ = 99837450. Its totient is φ = 99837448.

The previous prime is 99837407. The next prime is 99837469. The reversal of 99837449 is 94473899.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69422224 + 30415225 = 8332^2 + 5515^2 .

It is a cyclic number.

It is not a de Polignac number, because 99837449 - 2⁸ = 99837193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99837449.

It is not a weakly prime, because it can be changed into another prime (99837469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49918724 + 49918725.

It is an arithmetic number, because the mean of its divisors is an integer number (49918725).

Almost surely, 2^99837449 is an apocalyptic number.

It is an amenable number.

99837449 is a deficient number, since it is larger than the sum of its proper divisors (1).

99837449 is an equidigital number, since it uses as much as digits as its factorization.

99837449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 99837449 is about 9991.8691444594. The cubic root of 99837449 is about 463.9072486649.

The spelling of 99837449 in words is "ninety-nine million, eight hundred thirty-seven thousand, four hundred forty-nine".