97210445 has 4 divisors (see below), whose sum is σ = 116652540. Its totient is φ = 77768352.

The previous prime is 97210423. The next prime is 97210457. The reversal of 97210445 is 54401279.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60171049 + 37039396 = 7757^2 + 6086^2 .

It is a cyclic number.

It is not a de Polignac number, because 97210445 - 2⁸ = 97210189 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9721040 + ... + 9721049.

It is an arithmetic number, because the mean of its divisors is an integer number (29163135).

Almost surely, 2^97210445 is an apocalyptic number.

It is an amenable number.

97210445 is a deficient number, since it is larger than the sum of its proper divisors (19442095).

97210445 is a wasteful number, since it uses less digits than its factorization.

97210445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19442094.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 97210445 is about 9859.5357395772. The cubic root of 97210445 is about 459.8021281920.

The spelling of 97210445 in words is "ninety-seven million, two hundred ten thousand, four hundred forty-five".