97831028 has 6 divisors (see below), whose sum is σ = 171204306. Its totient is φ = 48915512.

The previous prime is 97831001. The next prime is 97831031. The reversal of 97831028 is 82013879.

It can be written as a sum of positive squares in only one way, i.e., 91164304 + 6666724 = 9548^2 + 2582^2 .

It is a junction number, because it is equal to n+sod(n) for n = 97830982 and 97831000.

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 as a sum of consecutive naturals, namely, 12228875 + ... + 12228882.

It is an arithmetic number, because the mean of its divisors is an integer number (28534051).

Almost surely, 2^97831028 is an apocalyptic number.

It is an amenable number.

97831028 is a deficient number, since it is larger than the sum of its proper divisors (73373278).

97831028 is a wasteful number, since it uses less digits than its factorization.

97831028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24457761 (or 24457759 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 97831028 is about 9890.9568798979. The cubic root of 97831028 is about 460.7784989988.

The spelling of 97831028 in words is "ninety-seven million, eight hundred thirty-one thousand, twenty-eight".