97161867 has 48 divisors (see below), whose sum is σ = 162279936. Its totient is φ = 55440000.

The previous prime is 97161809. The next prime is 97161881. The reversal of 97161867 is 76816179.

It is not a de Polignac number, because 97161867 - 2¹⁴ = 97145483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97161887) 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 47 ways as a sum of consecutive naturals, for example, 161367 + ... + 161967.

It is an arithmetic number, because the mean of its divisors is an integer number (3380832).

Almost surely, 2^97161867 is an apocalyptic number.

97161867 is a deficient number, since it is larger than the sum of its proper divisors (65118069).

97161867 is a wasteful number, since it uses less digits than its factorization.

97161867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 709 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 97161867 is about 9857.0719283162. The cubic root of 97161867 is about 459.7255246629.

The spelling of 97161867 in words is "ninety-seven million, one hundred sixty-one thousand, eight hundred sixty-seven".