97849511 has 4 divisors (see below), whose sum is σ = 97926024. Its totient is φ = 97773000.

The previous prime is 97849483. The next prime is 97849517. The reversal of 97849511 is 11594879.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97849511 - 2²² = 93655207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97849517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36305 + ... + 38906.

It is an arithmetic number, because the mean of its divisors is an integer number (24481506).

Almost surely, 2^97849511 is an apocalyptic number.

97849511 is a deficient number, since it is larger than the sum of its proper divisors (76513).

97849511 is a wasteful number, since it uses less digits than its factorization.

97849511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76512.

The product of its digits is 90720, while the sum is 44.

The square root of 97849511 is about 9891.8911740880. The cubic root of 97849511 is about 460.8075151262.

The spelling of 97849511 in words is "ninety-seven million, eight hundred forty-nine thousand, five hundred eleven".