97689600986 has 4 divisors (see below), whose sum is σ = 146534401482. Its totient is φ = 48844800492.

The previous prime is 97689600977. The next prime is 97689601013. The reversal of 97689600986 is 68900698679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68900698679 = 67 ⋅1028368637.

It can be written as a sum of positive squares in only one way, i.e., 97644375361 + 45225625 = 312481^2 + 6725^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24422400245 + ... + 24422400248.

Almost surely, 2^97689600986 is an apocalyptic number.

97689600986 is a deficient number, since it is larger than the sum of its proper divisors (48844800496).

97689600986 is a wasteful number, since it uses less digits than its factorization.

97689600986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48844800495.

The product of its (nonzero) digits is 70543872, while the sum is 68.

The spelling of 97689600986 in words is "ninety-seven billion, six hundred eighty-nine million, six hundred thousand, nine hundred eighty-six".