97705172 has 6 divisors (see below), whose sum is σ = 170984058. Its totient is φ = 48852584.

The previous prime is 97705169. The next prime is 97705177. The reversal of 97705172 is 27150779.

It can be written as a sum of positive squares in only one way, i.e., 96157636 + 1547536 = 9806^2 + 1244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97705177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12213143 + ... + 12213150.

It is an arithmetic number, because the mean of its divisors is an integer number (28497343).

Almost surely, 2^97705172 is an apocalyptic number.

It is an amenable number.

97705172 is a deficient number, since it is larger than the sum of its proper divisors (73278886).

97705172 is a wasteful number, since it uses less digits than its factorization.

97705172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24426297 (or 24426295 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 97705172 is about 9884.5926572621. The cubic root of 97705172 is about 460.5808227066.

The spelling of 97705172 in words is "ninety-seven million, seven hundred five thousand, one hundred seventy-two".