91016913 has 8 divisors (see below), whose sum is σ = 130691008. Its totient is φ = 56010384.

The previous prime is 91016903. The next prime is 91016923. The reversal of 91016913 is 31961019.

It is an interprime number because it is at equal distance from previous prime (91016903) and next prime (91016923).

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

It is not a de Polignac number, because 91016913 - 2¹⁷ = 90885841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91016903) 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, 1166845 + ... + 1166922.

It is an arithmetic number, because the mean of its divisors is an integer number (16336376).

Almost surely, 2^91016913 is an apocalyptic number.

It is an amenable number.

91016913 is a deficient number, since it is larger than the sum of its proper divisors (39674095).

91016913 is a wasteful number, since it uses less digits than its factorization.

91016913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333783.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 91016913 is about 9540.2784550557. The cubic root of 91016913 is about 449.8220086196.

The spelling of 91016913 in words is "ninety-one million, sixteen thousand, nine hundred thirteen".