91339629 has 4 divisors (see below), whose sum is σ = 121786176. Its totient is φ = 60893084.

The previous prime is 91339613. The next prime is 91339649. The reversal of 91339629 is 92693319.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91339629 - 2⁴ = 91339613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91339649) 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 3 ways as a sum of consecutive naturals, for example, 15223269 + ... + 15223274.

It is an arithmetic number, because the mean of its divisors is an integer number (30446544).

Almost surely, 2^91339629 is an apocalyptic number.

It is an amenable number.

91339629 is a deficient number, since it is larger than the sum of its proper divisors (30446547).

91339629 is a wasteful number, since it uses less digits than its factorization.

91339629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30446546.

The product of its digits is 78732, while the sum is 42.

The square root of 91339629 is about 9557.1768320985. The cubic root of 91339629 is about 450.3530217500.

The spelling of 91339629 in words is "ninety-one million, three hundred thirty-nine thousand, six hundred twenty-nine".