99622 has 4 divisors (see below), whose sum is σ = 149436. Its totient is φ = 49810.

The previous prime is 99611. The next prime is 99623. The reversal of 99622 is 22699.

99622 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24904 + ... + 24907.

It is an arithmetic number, because the mean of its divisors is an integer number (37359).

2⁹⁹⁶²² is an apocalyptic number.

99622 is a deficient number, since it is larger than the sum of its proper divisors (49814).

99622 is a wasteful number, since it uses less digits than its factorization.

99622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49813.

The product of its digits is 1944, while the sum is 28.

The square root of 99622 is about 315.6295296705. The cubic root of 99622 is about 46.3573304718.

It can be divided in two parts, 996 and 22, that multiplied together give a palindrome (21912).

The spelling of 99622 in words is "ninety-nine thousand, six hundred twenty-two".