97686943 has 4 divisors (see below), whose sum is σ = 97794160. Its totient is φ = 97579728.

The previous prime is 97686931. The next prime is 97686971. The reversal of 97686943 is 34968679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34968679 = 73 ⋅479023.

It is a cyclic number.

It is not a de Polignac number, because 97686943 - 2⁹ = 97686431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97686143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52230 + ... + 54067.

It is an arithmetic number, because the mean of its divisors is an integer number (24448540).

Almost surely, 2^97686943 is an apocalyptic number.

97686943 is a deficient number, since it is larger than the sum of its proper divisors (107217).

97686943 is a wasteful number, since it uses less digits than its factorization.

97686943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107216.

The product of its digits is 1959552, while the sum is 52.

The square root of 97686943 is about 9883.6705226348. The cubic root of 97686943 is about 460.5521771741.

The spelling of 97686943 in words is "ninety-seven million, six hundred eighty-six thousand, nine hundred forty-three".