99962191 has 8 divisors (see below), whose sum is σ = 115948160. Its totient is φ = 84402648.

The previous prime is 99962179. The next prime is 99962201. The reversal of 99962191 is 19126999.

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 99962191 - 2⁷ = 99962063 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 (99962111) 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, 106101 + ... + 107038.

It is an arithmetic number, because the mean of its divisors is an integer number (14493520).

Almost surely, 2^99962191 is an apocalyptic number.

99962191 is a deficient number, since it is larger than the sum of its proper divisors (15985969).

99962191 is a wasteful number, since it uses less digits than its factorization.

99962191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213213.

The product of its digits is 78732, while the sum is 46.

The square root of 99962191 is about 9998.1093712762. The cubic root of 99962191 is about 464.1003780432.

It can be divided in two parts, 999 and 62191, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 99962191 in words is "ninety-nine million, nine hundred sixty-two thousand, one hundred ninety-one".