97853219 has 4 divisors (see below), whose sum is σ = 97978344. Its totient is φ = 97728096.

The previous prime is 97853191. The next prime is 97853227. The reversal of 97853219 is 91235879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91235879 = 7 ⋅13033697.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97853219 is a prime.

It is a super-2 number, since 2×97853219² = 19150504937323922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97853219.

It is not an unprimeable number, because it can be changed into a prime (97853719) 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, 61382 + ... + 62955.

It is an arithmetic number, because the mean of its divisors is an integer number (24494586).

Almost surely, 2^97853219 is an apocalyptic number.

97853219 is a deficient number, since it is larger than the sum of its proper divisors (125125).

97853219 is a wasteful number, since it uses less digits than its factorization.

97853219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125124.

The product of its digits is 136080, while the sum is 44.

The square root of 97853219 is about 9892.0785985555. The cubic root of 97853219 is about 460.8133358082.

The spelling of 97853219 in words is "ninety-seven million, eight hundred fifty-three thousand, two hundred nineteen".