91394066 has 8 divisors (see below), whose sum is σ = 144306480. Its totient is φ = 43291908.

The previous prime is 91394053. The next prime is 91394081. The reversal of 91394066 is 66049319.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 2405107 = 91394066 / (9 + 1 + 3 + 9 + 4 + 0 + 6 + 6).

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, 1202516 + ... + 1202591.

It is an arithmetic number, because the mean of its divisors is an integer number (18038310).

Almost surely, 2^91394066 is an apocalyptic number.

91394066 is a deficient number, since it is larger than the sum of its proper divisors (52912414).

91394066 is a wasteful number, since it uses less digits than its factorization.

91394066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405128.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 91394066 is about 9560.0243723539. The cubic root of 91394066 is about 450.4424717838.

The spelling of 91394066 in words is "ninety-one million, three hundred ninety-four thousand, sixty-six".