99858461 has 2 divisors, whose sum is σ = 99858462. Its totient is φ = 99858460.

The previous prime is 99858419. The next prime is 99858467. The reversal of 99858461 is 16485899.

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., 85562500 + 14295961 = 9250^2 + 3781^2 .

It is a cyclic number.

It is not a de Polignac number, because 99858461 - 2¹⁸ = 99596317 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 (99858467) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49929230 + 49929231.

It is an arithmetic number, because the mean of its divisors is an integer number (49929231).

Almost surely, 2^99858461 is an apocalyptic number.

It is an amenable number.

99858461 is a deficient number, since it is larger than the sum of its proper divisors (1).

99858461 is an equidigital number, since it uses as much as digits as its factorization.

99858461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 50.

The square root of 99858461 is about 9992.9205440652. The cubic root of 99858461 is about 463.9397913479.

The spelling of 99858461 in words is "ninety-nine million, eight hundred fifty-eight thousand, four hundred sixty-one".