97147449 has 72 divisors (see below), whose sum is σ = 172149120. Its totient is φ = 52581312.

The previous prime is 97147439. The next prime is 97147481. The reversal of 97147449 is 94474179.

It is not a de Polignac number, because 97147449 - 2⁷ = 97147321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97147429) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 891207 + ... + 891315.

It is an arithmetic number, because the mean of its divisors is an integer number (2390960).

Almost surely, 2^97147449 is an apocalyptic number.

It is an amenable number.

97147449 is a deficient number, since it is larger than the sum of its proper divisors (75001671).

97147449 is a wasteful number, since it uses less digits than its factorization.

97147449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 209 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 97147449 is about 9856.3405480939. The cubic root of 97147449 is about 459.7027837437.

The spelling of 97147449 in words is "ninety-seven million, one hundred forty-seven thousand, four hundred forty-nine".