97655838 has 64 divisors (see below), whose sum is σ = 238436352. Its totient is φ = 26056800.

The previous prime is 97655821. The next prime is 97655849. The reversal of 97655838 is 83855679.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40363 + ... + 42713.

It is an arithmetic number, because the mean of its divisors is an integer number (3725568).

Almost surely, 2^97655838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97655838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119218176).

97655838 is an abundant number, since it is smaller than the sum of its proper divisors (140780514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97655838 is a wasteful number, since it uses less digits than its factorization.

97655838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429.

The product of its digits is 1814400, while the sum is 51.

The square root of 97655838 is about 9882.0968422699. The cubic root of 97655838 is about 460.5032897255.

The spelling of 97655838 in words is "ninety-seven million, six hundred fifty-five thousand, eight hundred thirty-eight".