97446221 has 4 divisors (see below), whose sum is σ = 97657152. Its totient is φ = 97235292.

The previous prime is 97446203. The next prime is 97446253. The reversal of 97446221 is 12264479.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12264479 = 263 ⋅46633.

It is a cyclic number.

It is not a de Polignac number, because 97446221 - 2⁶ = 97446157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97446281) 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, 104771 + ... + 105696.

It is an arithmetic number, because the mean of its divisors is an integer number (24414288).

Almost surely, 2^97446221 is an apocalyptic number.

It is an amenable number.

97446221 is a deficient number, since it is larger than the sum of its proper divisors (210931).

97446221 is a wasteful number, since it uses less digits than its factorization.

97446221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210930.

The product of its digits is 24192, while the sum is 35.

The square root of 97446221 is about 9871.4852479250. The cubic root of 97446221 is about 460.1735655675.

The spelling of 97446221 in words is "ninety-seven million, four hundred forty-six thousand, two hundred twenty-one".