91608038 has 16 divisors (see below), whose sum is σ = 142940160. Its totient is φ = 43984200.

The previous prime is 91608037. The next prime is 91608043. The reversal of 91608038 is 83080619.

It is a junction number, because it is equal to n+sod(n) for n = 91607989 and 91608007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91608037) 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, 2483 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (8933760).

Almost surely, 2^91608038 is an apocalyptic number.

91608038 is a deficient number, since it is larger than the sum of its proper divisors (51332122).

91608038 is a wasteful number, since it uses less digits than its factorization.

91608038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11443.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 91608038 is about 9571.2088055794. The cubic root of 91608038 is about 450.7937234635.

The spelling of 91608038 in words is "ninety-one million, six hundred eight thousand, thirty-eight".