97861845 has 32 divisors (see below), whose sum is σ = 159973632. Its totient is φ = 51075072.

The previous prime is 97861831. The next prime is 97861853. The reversal of 97861845 is 54816879.

It is not a de Polignac number, because 97861845 - 2⁷ = 97861717 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 97861794 and 97861803.

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 in 31 ways as a sum of consecutive naturals, for example, 149539 + ... + 150191.

It is an arithmetic number, because the mean of its divisors is an integer number (4999176).

Almost surely, 2^97861845 is an apocalyptic number.

It is an amenable number.

97861845 is a deficient number, since it is larger than the sum of its proper divisors (62111787).

97861845 is a wasteful number, since it uses less digits than its factorization.

97861845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its digits is 483840, while the sum is 48.

The square root of 97861845 is about 9892.5145943789. The cubic root of 97861845 is about 460.8268760170.

The spelling of 97861845 in words is "ninety-seven million, eight hundred sixty-one thousand, eight hundred forty-five".