99638262 has 56 divisors (see below), whose sum is σ = 230264496. Its totient is φ = 32297616.

The previous prime is 99638243. The next prime is 99638269. The reversal of 99638262 is 26283699.

99638262 is a `hidden beast` number, since 9 + 9 + 638 + 2 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99638269) 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 27 ways as a sum of consecutive naturals, for example, 53023 + ... + 54869.

It is an arithmetic number, because the mean of its divisors is an integer number (4111866).

Almost surely, 2^99638262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99638262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115132248).

99638262 is an abundant number, since it is smaller than the sum of its proper divisors (130626234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99638262 is a wasteful number, since it uses less digits than its factorization.

99638262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 1889 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 99638262 is about 9981.8967135510. The cubic root of 99638262 is about 463.5985274566.

It can be divided in two parts, 9963 and 8262, that added together give a square (18225 = 135²).

The spelling of 99638262 in words is "ninety-nine million, six hundred thirty-eight thousand, two hundred sixty-two".