97805280 has 48 divisors (see below), whose sum is σ = 308088144. Its totient is φ = 26081280.

The previous prime is 97805273. The next prime is 97805287. The reversal of 97805280 is 8250879.

It is an interprime number because it is at equal distance from previous prime (97805273) and next prime (97805287).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97805287) 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 7 ways as a sum of consecutive naturals, for example, 101401 + ... + 102360.

It is an arithmetic number, because the mean of its divisors is an integer number (6418503).

Almost surely, 2^97805280 is an apocalyptic number.

It is an amenable number.

97805280 is an abundant number, since it is smaller than the sum of its proper divisors (210282864).

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

97805280 is a wasteful number, since it uses less digits than its factorization.

97805280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203779 (or 203771 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 97805280 is about 9889.6552012697. The cubic root of 97805280 is about 460.7380715869.

The spelling of 97805280 in words is "ninety-seven million, eight hundred five thousand, two hundred eighty".