97086834521 has 4 divisors (see below), whose sum is σ = 97088437200. Its totient is φ = 97085231844.

The previous prime is 97086834499. The next prime is 97086834529. The reversal of 97086834521 is 12543868079.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12543868079 = 15173 ⋅826723.

It is a cyclic number.

It is not a de Polignac number, because 97086834521 - 2¹⁴ = 97086818137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97086834529) 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, 706751 + ... + 832868.

It is an arithmetic number, because the mean of its divisors is an integer number (24272109300).

It is a 1-persistent number, because it is pandigital, but 2⋅97086834521 = 194173669042 is not.

Almost surely, 2^97086834521 is an apocalyptic number.

It is an amenable number.

97086834521 is a deficient number, since it is larger than the sum of its proper divisors (1602679).

97086834521 is a wasteful number, since it uses less digits than its factorization.

97086834521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602678.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 97086834521 in words is "ninety-seven billion, eighty-six million, eight hundred thirty-four thousand, five hundred twenty-one".