97656249 has 16 divisors (see below), whose sum is σ = 131516352.
Its totient is φ = 64454208.
The previous prime is 97656233. The next prime is 97656277. The reversal of 97656249 is 94265679.
It is not a de Polignac number, because 97656249 - 24 = 97656233 is a prime.
It is a plaindrome in base 5.
It is a junction number, because it is equal to n+sod(n) for n = 97656198 and 97656207.
It is not an unprimeable number, because it can be changed into a prime (97656289) by changing a digit.
Being equal to 10×510-1, it is a generalized Woodall number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220222 + ... + 220664.
It is an arithmetic number, because the mean of its divisors is an integer number (8219772).
Almost surely, 297656249 is an apocalyptic number.
It is an amenable number.
97656249 is a deficient number, since it is larger than the sum of its proper divisors (33860103).
97656249 is a wasteful number, since it uses less digits than its factorization.
97656249 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1016.
The product of its digits is 816480, while the sum is 48.
The square root of 97656249 is about 9882.1176374297.
The cubic root of 97656249 is about 460.5039357582.
The spelling of 97656249 in words is "ninety-seven million, six hundred fifty-six thousand, two hundred forty-nine".