91566347 has 8 divisors (see below), whose sum is σ = 92865360. Its totient is φ = 90272160.

The previous prime is 91566331. The next prime is 91566359. The reversal of 91566347 is 74366519.

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

It is a cyclic number.

It is not a de Polignac number, because 91566347 - 2⁴ = 91566331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91566547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54029 + ... + 55697.

It is an arithmetic number, because the mean of its divisors is an integer number (11608170).

Almost surely, 2^91566347 is an apocalyptic number.

91566347 is a deficient number, since it is larger than the sum of its proper divisors (1299013).

91566347 is a wasteful number, since it uses less digits than its factorization.

91566347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413.

The product of its digits is 136080, while the sum is 41.

The square root of 91566347 is about 9569.0306196605. The cubic root of 91566347 is about 450.7253273805.

The spelling of 91566347 in words is "ninety-one million, five hundred sixty-six thousand, three hundred forty-seven".