99591401 has 8 divisors (see below), whose sum is σ = 122574144. Its totient is φ = 78797520.

The previous prime is 99591347. The next prime is 99591409. The reversal of 99591401 is 10419599.

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 99591401 - 2¹⁸ = 99329257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99591409) 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, 547115 + ... + 547296.

It is an arithmetic number, because the mean of its divisors is an integer number (15321768).

Almost surely, 2^99591401 is an apocalyptic number.

99591401 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

99591401 is a deficient number, since it is larger than the sum of its proper divisors (22982743).

99591401 is a wasteful number, since it uses less digits than its factorization.

99591401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094431.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 99591401 is about 9979.5491381124. The cubic root of 99591401 is about 463.5258375185.

The spelling of 99591401 in words is "ninety-nine million, five hundred ninety-one thousand, four hundred one".