97848257 has 4 divisors (see below), whose sum is σ = 105375060. Its totient is φ = 90321456.

The previous prime is 97848253. The next prime is 97848269. The reversal of 97848257 is 75284879.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51825601 + 46022656 = 7199^2 + 6784^2 .

It is a cyclic number.

It is not a de Polignac number, because 97848257 - 2² = 97848253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97848253) 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, 3763382 + ... + 3763407.

It is an arithmetic number, because the mean of its divisors is an integer number (26343765).

Almost surely, 2^97848257 is an apocalyptic number.

It is an amenable number.

97848257 is a deficient number, since it is larger than the sum of its proper divisors (7526803).

97848257 is a wasteful number, since it uses less digits than its factorization.

97848257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526802.

The product of its digits is 1128960, while the sum is 50.

The square root of 97848257 is about 9891.8277886344. The cubic root of 97848257 is about 460.8055466098.

The spelling of 97848257 in words is "ninety-seven million, eight hundred forty-eight thousand, two hundred fifty-seven".