91901366 has 8 divisors (see below), whose sum is σ = 145107480. Its totient is φ = 43532208.

The previous prime is 91901357. The next prime is 91901393. The reversal of 91901366 is 66310919.

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

It is a super-2 number, since 2×91901366² = 16891722145331912, which contains 22 as substring.

It is a congruent number.

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, 1209191 + ... + 1209266.

It is an arithmetic number, because the mean of its divisors is an integer number (18138435).

Almost surely, 2^91901366 is an apocalyptic number.

91901366 is a deficient number, since it is larger than the sum of its proper divisors (53206114).

91901366 is a wasteful number, since it uses less digits than its factorization.

91901366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418478.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 91901366 is about 9586.5200151045. The cubic root of 91901366 is about 451.2743564634.

The spelling of 91901366 in words is "ninety-one million, nine hundred one thousand, three hundred sixty-six".