91965385 has 16 divisors (see below), whose sum is σ = 115612416. Its totient is φ = 70095168.

The previous prime is 91965373. The next prime is 91965403. The reversal of 91965385 is 58356919.

It is not a de Polignac number, because 91965385 - 2⁵ = 91965353 is a prime.

It is a super-3 number, since 3×91965385³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30412 + ... + 33298.

It is an arithmetic number, because the mean of its divisors is an integer number (7225776).

Almost surely, 2^91965385 is an apocalyptic number.

It is an amenable number.

91965385 is a deficient number, since it is larger than the sum of its proper divisors (23647031).

91965385 is a wasteful number, since it uses less digits than its factorization.

91965385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192.

The product of its digits is 291600, while the sum is 46.

The square root of 91965385 is about 9589.8584452535. The cubic root of 91965385 is about 451.3791188790.

The spelling of 91965385 in words is "ninety-one million, nine hundred sixty-five thousand, three hundred eighty-five".