91069385 has 8 divisors (see below), whose sum is σ = 119218176. Its totient is φ = 66232240.

The previous prime is 91069379. The next prime is 91069387. The reversal of 91069385 is 58396019.

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

It is not a de Polignac number, because 91069385 - 2⁴ = 91069369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91069387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827849 + ... + 827958.

It is an arithmetic number, because the mean of its divisors is an integer number (14902272).

Almost surely, 2^91069385 is an apocalyptic number.

It is an amenable number.

91069385 is a deficient number, since it is larger than the sum of its proper divisors (28148791).

91069385 is a wasteful number, since it uses less digits than its factorization.

91069385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655823.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 91069385 is about 9543.0280833706. The cubic root of 91069385 is about 449.9084340443.

The spelling of 91069385 in words is "ninety-one million, sixty-nine thousand, three hundred eighty-five".