97676576729 has 4 divisors (see below), whose sum is σ = 97680608676. Its totient is φ = 97672544784.

The previous prime is 97676576707. The next prime is 97676576761. The reversal of 97676576729 is 92767567679.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54264770704 + 43411806025 = 232948^2 + 208355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97676576729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97676576329) 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, 1979414 + ... + 2028159.

It is an arithmetic number, because the mean of its divisors is an integer number (24420152169).

Almost surely, 2^97676576729 is an apocalyptic number.

It is an amenable number.

97676576729 is a deficient number, since it is larger than the sum of its proper divisors (4031947).

97676576729 is a wasteful number, since it uses less digits than its factorization.

97676576729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031946.

The product of its digits is 420078960, while the sum is 71.

The spelling of 97676576729 in words is "ninety-seven billion, six hundred seventy-six million, five hundred seventy-six thousand, seven hundred twenty-nine".