91566346 has 8 divisors (see below), whose sum is σ = 137392164. Its totient is φ = 45768960.

The previous prime is 91566331. The next prime is 91566359. The reversal of 91566346 is 64366519.

It can be written as a sum of positive squares in 2 ways, for example, as 90041121 + 1525225 = 9489^2 + 1235^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 91566299 and 91566308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5226 + ... + 14506.

Almost surely, 2^91566346 is an apocalyptic number.

91566346 is a deficient number, since it is larger than the sum of its proper divisors (45825818).

91566346 is a wasteful number, since it uses less digits than its factorization.

91566346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14216.

The product of its digits is 116640, while the sum is 40.

The square root of 91566346 is about 9569.0305674086. The cubic root of 91566346 is about 450.7253257397.

The spelling of 91566346 in words is "ninety-one million, five hundred sixty-six thousand, three hundred forty-six".