99493901 has 16 divisors (see below), whose sum is σ = 109453680. Its totient is φ = 89886720.

The previous prime is 99493897. The next prime is 99493907. The reversal of 99493901 is 10939499.

99493901 = 1013² + 1014² + ... + 1101².

It can be written as a sum of positive squares in 8 ways, for example, as 75238276 + 24255625 = 8674^2 + 4925^2 .

It is a cyclic number.

It is not a de Polignac number, because 99493901 - 2² = 99493897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99493907) 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 in 15 ways as a sum of consecutive naturals, for example, 130361 + ... + 131121.

It is an arithmetic number, because the mean of its divisors is an integer number (6840855).

Almost surely, 2^99493901 is an apocalyptic number.

It is an amenable number.

99493901 is a deficient number, since it is larger than the sum of its proper divisors (9959779).

99493901 is a wasteful number, since it uses less digits than its factorization.

99493901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 99493901 is about 9974.6629516992. The cubic root of 99493901 is about 463.3745241690.

The spelling of 99493901 in words is "ninety-nine million, four hundred ninety-three thousand, nine hundred one".