97891411 has 4 divisors (see below), whose sum is σ = 98806392. Its totient is φ = 96976432.

The previous prime is 97891403. The next prime is 97891421. The reversal of 97891411 is 11419879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11419879 = 277 ⋅41227.

It is a cyclic number.

It is not a de Polignac number, because 97891411 - 2³ = 97891403 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97891421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457330 + ... + 457543.

It is an arithmetic number, because the mean of its divisors is an integer number (24701598).

Almost surely, 2^97891411 is an apocalyptic number.

97891411 is a deficient number, since it is larger than the sum of its proper divisors (914981).

97891411 is a wasteful number, since it uses less digits than its factorization.

97891411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914980.

The product of its digits is 18144, while the sum is 40.

The square root of 97891411 is about 9894.0088437397. The cubic root of 97891411 is about 460.8732796504.

The spelling of 97891411 in words is "ninety-seven million, eight hundred ninety-one thousand, four hundred eleven".