91738697 has 8 divisors (see below), whose sum is σ = 96624576. Its totient is φ = 86927632.

The previous prime is 91738679. The next prime is 91738709. The reversal of 91738697 is 79683719.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91738697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91738627) 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, 16178 + ... + 21099.

It is an arithmetic number, because the mean of its divisors is an integer number (12078072).

Almost surely, 2^91738697 is an apocalyptic number.

It is an amenable number.

91738697 is a deficient number, since it is larger than the sum of its proper divisors (4885879).

91738697 is a wasteful number, since it uses less digits than its factorization.

91738697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37407.

The product of its digits is 571536, while the sum is 50.

The square root of 91738697 is about 9578.0320003642. The cubic root of 91738697 is about 451.0079414796.

The spelling of 91738697 in words is "ninety-one million, seven hundred thirty-eight thousand, six hundred ninety-seven".