97798655 has 8 divisors (see below), whose sum is σ = 117497472. Its totient is φ = 78146208.

The previous prime is 97798609. The next prime is 97798661. The reversal of 97798655 is 55689779.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97798655 - 2¹⁸ = 97536511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97798655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6767 + ... + 15536.

It is an arithmetic number, because the mean of its divisors is an integer number (14687184).

Almost surely, 2^97798655 is an apocalyptic number.

97798655 is a deficient number, since it is larger than the sum of its proper divisors (19698817).

97798655 is a wasteful number, since it uses less digits than its factorization.

97798655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23185.

The product of its digits is 4762800, while the sum is 56.

The square root of 97798655 is about 9889.3202496430. The cubic root of 97798655 is about 460.7276684041.

The spelling of 97798655 in words is "ninety-seven million, seven hundred ninety-eight thousand, six hundred fifty-five".