97281219 has 12 divisors (see below), whose sum is σ = 150885384. Its totient is φ = 55589184.

The previous prime is 97281199. The next prime is 97281227. The reversal of 97281219 is 91218279.

It is not a de Polignac number, because 97281219 - 2⁷ = 97281091 is a prime.

It is a super-2 number, since 2×97281219² = 18927271140251922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97281269) 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 11 ways as a sum of consecutive naturals, for example, 330742 + ... + 331035.

It is an arithmetic number, because the mean of its divisors is an integer number (12573782).

Almost surely, 2^97281219 is an apocalyptic number.

97281219 is a deficient number, since it is larger than the sum of its proper divisors (53604165).

97281219 is a wasteful number, since it uses less digits than its factorization.

97281219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661794 (or 661787 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 97281219 is about 9863.1242007794. The cubic root of 97281219 is about 459.9136873343.

The spelling of 97281219 in words is "ninety-seven million, two hundred eighty-one thousand, two hundred nineteen".