91005629 has 8 divisors (see below), whose sum is σ = 106915872. Its totient is φ = 76368240.

The previous prime is 91005623. The next prime is 91005647. The reversal of 91005629 is 92650019.

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

It is not a de Polignac number, because 91005629 - 2⁴ = 91005613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91005595 and 91005604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91005623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318059 + ... + 318344.

It is an arithmetic number, because the mean of its divisors is an integer number (13364484).

Almost surely, 2^91005629 is an apocalyptic number.

It is an amenable number.

91005629 is a deficient number, since it is larger than the sum of its proper divisors (15910243).

91005629 is a wasteful number, since it uses less digits than its factorization.

91005629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636427.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 91005629 is about 9539.6870493743. The cubic root of 91005629 is about 449.8034186632.

The spelling of 91005629 in words is "ninety-one million, five thousand, six hundred twenty-nine".