97622218 has 4 divisors (see below), whose sum is σ = 146433330. Its totient is φ = 48811108.

The previous prime is 97622197. The next prime is 97622219. The reversal of 97622218 is 81222679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81222679 = 4649 ⋅17471.

It can be written as a sum of positive squares in only one way, i.e., 75220929 + 22401289 = 8673^2 + 4733^2 .

It is not an unprimeable number, because it can be changed into a prime (97622219) 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 as a sum of consecutive naturals, namely, 24405553 + ... + 24405556.

Almost surely, 2^97622218 is an apocalyptic number.

97622218 is a deficient number, since it is larger than the sum of its proper divisors (48811112).

97622218 is a wasteful number, since it uses less digits than its factorization.

97622218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48811111.

The product of its digits is 24192, while the sum is 37.

The square root of 97622218 is about 9880.3956398517. The cubic root of 97622218 is about 460.4504377987.

The spelling of 97622218 in words is "ninety-seven million, six hundred twenty-two thousand, two hundred eighteen".