97825289 has 4 divisors (see below), whose sum is σ = 97845456. Its totient is φ = 97805124.

The previous prime is 97825271. The next prime is 97825313. The reversal of 97825289 is 98252879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97825289 - 2¹² = 97821193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97825229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2102 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (24461364).

Almost surely, 2^97825289 is an apocalyptic number.

It is an amenable number.

97825289 is a deficient number, since it is larger than the sum of its proper divisors (20167).

97825289 is a wasteful number, since it uses less digits than its factorization.

97825289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20166.

The product of its digits is 725760, while the sum is 50.

The square root of 97825289 is about 9890.6667621551. Note that the first 3 decimals coincide. The cubic root of 97825289 is about 460.7694887029.

The spelling of 97825289 in words is "ninety-seven million, eight hundred twenty-five thousand, two hundred eighty-nine".