91742967 has 6 divisors (see below), whose sum is σ = 132517632. Its totient is φ = 61161972.

The previous prime is 91742957. The next prime is 91743019. The reversal of 91742967 is 76924719.

It is not a de Polignac number, because 91742967 - 2⁸ = 91742711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91742957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5096823 + ... + 5096840.

It is an arithmetic number, because the mean of its divisors is an integer number (22086272).

Almost surely, 2^91742967 is an apocalyptic number.

91742967 is a deficient number, since it is larger than the sum of its proper divisors (40774665).

91742967 is a wasteful number, since it uses less digits than its factorization.

91742967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193669 (or 10193666 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 91742967 is about 9578.2549036868. The cubic root of 91742967 is about 451.0149387959.

The spelling of 91742967 in words is "ninety-one million, seven hundred forty-two thousand, nine hundred sixty-seven".