97549445 has 18 divisors (see below), whose sum is σ = 136387206. Its totient is φ = 66785040.

The previous prime is 97549433. The next prime is 97549447. The reversal of 97549445 is 54494579.

It can be written as a sum of positive squares in only one way, i.e., 78039556 + 19509889 = 8834^2 + 4417^2 .

It is not a de Polignac number, because 97549445 - 2⁶ = 97549381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97549445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97549447) 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 in 17 ways as a sum of consecutive naturals, for example, 154280 + ... + 154910.

It is an arithmetic number, because the mean of its divisors is an integer number (7577067).

Almost surely, 2^97549445 is an apocalyptic number.

It is an amenable number.

97549445 is a deficient number, since it is larger than the sum of its proper divisors (38837761).

97549445 is an frugal number, since it uses more digits than its factorization.

97549445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281 (or 643 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 97549445 is about 9876.7122566166. The cubic root of 97549445 is about 460.3359942831.

The spelling of 97549445 in words is "ninety-seven million, five hundred forty-nine thousand, four hundred forty-five".