97284891 has 16 divisors (see below), whose sum is σ = 141672960. Its totient is φ = 58890720.

The previous prime is 97284853. The next prime is 97284907. The reversal of 97284891 is 19848279.

It is not a de Polignac number, because 97284891 - 2⁹ = 97284379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97284891.

It is not an unprimeable number, because it can be changed into a prime (97284191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46126 + ... + 48188.

It is an arithmetic number, because the mean of its divisors is an integer number (8854560).

Almost surely, 2^97284891 is an apocalyptic number.

97284891 is a deficient number, since it is larger than the sum of its proper divisors (44388069).

97284891 is a wasteful number, since it uses less digits than its factorization.

97284891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its digits is 290304, while the sum is 48.

The square root of 97284891 is about 9863.3103469373. The cubic root of 97284891 is about 459.9194739319.

The spelling of 97284891 in words is "ninety-seven million, two hundred eighty-four thousand, eight hundred ninety-one".