97445620 has 12 divisors (see below), whose sum is σ = 204635844. Its totient is φ = 38978240.

The previous prime is 97445603. The next prime is 97445627. The reversal of 97445620 is 2654479.

It can be written as a sum of positive squares in 2 ways, for example, as 55920484 + 41525136 = 7478^2 + 6444^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97445620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97445627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2436121 + ... + 2436160.

It is an arithmetic number, because the mean of its divisors is an integer number (17052987).

Almost surely, 2^97445620 is an apocalyptic number.

It is an amenable number.

97445620 is an abundant number, since it is smaller than the sum of its proper divisors (107190224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97445620 is a wasteful number, since it uses less digits than its factorization.

97445620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872290 (or 4872288 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 97445620 is about 9871.4548066635. The cubic root of 97445620 is about 460.1726195247.

The spelling of 97445620 in words is "ninety-seven million, four hundred forty-five thousand, six hundred twenty".