97219361 has 4 divisors (see below), whose sum is σ = 97242132. Its totient is φ = 97196592.

The previous prime is 97219301. The next prime is 97219363. The reversal of 97219361 is 16391279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16391279 = 941 ⋅17419.

It can be written as a sum of positive squares in 2 ways, for example, as 25563136 + 71656225 = 5056^2 + 8465^2 .

It is a cyclic number.

It is not a de Polignac number, because 97219361 - 2¹⁰ = 97218337 is a prime.

It is a deceptive number, since it divides R_97219360.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97219363) 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, 2846 + ... + 14231.

It is an arithmetic number, because the mean of its divisors is an integer number (24310533).

Almost surely, 2^97219361 is an apocalyptic number.

97219361 is the 5693-rd octagonal number.

It is an amenable number.

97219361 is a deficient number, since it is larger than the sum of its proper divisors (22771).

97219361 is a wasteful number, since it uses less digits than its factorization.

97219361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22770.

The product of its digits is 20412, while the sum is 38.

The square root of 97219361 is about 9859.9878803171. The cubic root of 97219361 is about 459.8161852220.

The spelling of 97219361 in words is "ninety-seven million, two hundred nineteen thousand, three hundred sixty-one".