99563401 has 8 divisors (see below), whose sum is σ = 119775680. Its totient is φ = 80848368.

The previous prime is 99563381. The next prime is 99563423. The reversal of 99563401 is 10436599.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99563401 - 2¹⁹ = 99039113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99563461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374166 + ... + 374431.

It is an arithmetic number, because the mean of its divisors is an integer number (14971960).

Almost surely, 2^99563401 is an apocalyptic number.

It is an amenable number.

99563401 is a deficient number, since it is larger than the sum of its proper divisors (20212279).

99563401 is a wasteful number, since it uses less digits than its factorization.

99563401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748623.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 99563401 is about 9978.1461705068. The cubic root of 99563401 is about 463.4823935403.

The spelling of 99563401 in words is "ninety-nine million, five hundred sixty-three thousand, four hundred one".