91740771 has 6 divisors (see below), whose sum is σ = 132514460. Its totient is φ = 61160508.

The previous prime is 91740763. The next prime is 91740799. The reversal of 91740771 is 17704719.

It is not a de Polignac number, because 91740771 - 2³ = 91740763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91740731) 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 5 ways as a sum of consecutive naturals, for example, 5096701 + ... + 5096718.

Almost surely, 2^91740771 is an apocalyptic number.

91740771 is a deficient number, since it is larger than the sum of its proper divisors (40773689).

91740771 is a wasteful number, since it uses less digits than its factorization.

91740771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193425 (or 10193422 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 91740771 is about 9578.1402683402. The cubic root of 91740771 is about 451.0113402032.

The spelling of 91740771 in words is "ninety-one million, seven hundred forty thousand, seven hundred seventy-one".