97854475489 has 9 divisors (see below), whose sum is σ = 103954867321. Its totient is φ = 92093324800.

The previous prime is 97854475483. The next prime is 97854475517. The reversal of 97854475489 is 98457445879.

The square root of 97854475489 is 312817.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 5798061025 + 92056414464 = 76145^2 + 303408^2 .

It is not a de Polignac number, because 97854475489 - 2¹⁷ = 97854344417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97854475483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5308689 + ... + 5327089.

Almost surely, 2^97854475489 is an apocalyptic number.

97854475489 is the 312817-th square number.

97854475489 is the 156409-th centered octagonal number.

It is an amenable number.

97854475489 is a deficient number, since it is larger than the sum of its proper divisors (6100391832).

97854475489 is an frugal number, since it uses more digits than its factorization.

97854475489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36836 (or 18418 counting only the distinct ones).

The product of its digits is 406425600, while the sum is 70.

The spelling of 97854475489 in words is "ninety-seven billion, eight hundred fifty-four million, four hundred seventy-five thousand, four hundred eighty-nine".