97897970 has 8 divisors (see below), whose sum is σ = 176216364. Its totient is φ = 39159184.

The previous prime is 97897931. The next prime is 97897973. The reversal of 97897970 is 7979879.

It can be written as a sum of positive squares in 2 ways, for example, as 90763729 + 7134241 = 9527^2 + 2671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (97897973) 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, 4894889 + ... + 4894908.

Almost surely, 2^97897970 is an apocalyptic number.

97897970 is a deficient number, since it is larger than the sum of its proper divisors (78318394).

97897970 is a wasteful number, since it uses less digits than its factorization.

97897970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9789804.

The product of its (nonzero) digits is 2000376, while the sum is 56.

The square root of 97897970 is about 9894.3403014046. The cubic root of 97897970 is about 460.8835726894.

The spelling of 97897970 in words is "ninety-seven million, eight hundred ninety-seven thousand, nine hundred seventy".