97805659 has 4 divisors (see below), whose sum is σ = 111777904. Its totient is φ = 83833416.

The previous prime is 97805639. The next prime is 97805663. The reversal of 97805659 is 95650879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95650879 = 109 ⋅877531.

It is a cyclic number.

It is not a de Polignac number, because 97805659 - 2⁵ = 97805627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97805639) 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, 6986112 + ... + 6986125.

It is an arithmetic number, because the mean of its divisors is an integer number (27944476).

Almost surely, 2^97805659 is an apocalyptic number.

97805659 is a deficient number, since it is larger than the sum of its proper divisors (13972245).

97805659 is a wasteful number, since it uses less digits than its factorization.

97805659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13972244.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 97805659 is about 9889.6743626876. The cubic root of 97805659 is about 460.7386667133.

The spelling of 97805659 in words is "ninety-seven million, eight hundred five thousand, six hundred fifty-nine".