99993461 has 2 divisors, whose sum is σ = 99993462. Its totient is φ = 99993460.

The previous prime is 99993449. The next prime is 99993463. The reversal of 99993461 is 16439999.

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., 61936900 + 38056561 = 7870^2 + 6169^2 .

It is an emirp because it is prime and its reverse (16439999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99993461 - 2¹⁰ = 99992437 is a prime.

Together with 99993463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99993463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49996730 + 49996731.

It is an arithmetic number, because the mean of its divisors is an integer number (49996731).

Almost surely, 2^99993461 is an apocalyptic number.

It is an amenable number.

99993461 is a deficient number, since it is larger than the sum of its proper divisors (1).

99993461 is an equidigital number, since it uses as much as digits as its factorization.

99993461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 472392, while the sum is 50.

The square root of 99993461 is about 9999.6730446550. The cubic root of 99993461 is about 464.1487660243.

The spelling of 99993461 in words is "ninety-nine million, nine hundred ninety-three thousand, four hundred sixty-one".