91740766 has 16 divisors (see below), whose sum is σ = 148466304. Its totient is φ = 42264864.

The previous prime is 91740763. The next prime is 91740799. The reversal of 91740766 is 66704719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91740763) 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, 12876 + ... + 18688.

It is an arithmetic number, because the mean of its divisors is an integer number (9279144).

Almost surely, 2^91740766 is an apocalyptic number.

91740766 is a deficient number, since it is larger than the sum of its proper divisors (56725538).

91740766 is a wasteful number, since it uses less digits than its factorization.

91740766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 91740766 is about 9578.1400073292. The cubic root of 91740766 is about 451.0113320096.

The spelling of 91740766 in words is "ninety-one million, seven hundred forty thousand, seven hundred sixty-six".