197026656 has 96 divisors (see below), whose sum is σ = 549964800. Its totient is φ = 61585920.

The previous prime is 197026631. The next prime is 197026663. The reversal of 197026656 is 656620791.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198321 + ... + 199311.

It is an arithmetic number, because the mean of its divisors is an integer number (5728800).

Almost surely, 2^197026656 is an apocalyptic number.

197026656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197026656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274982400).

197026656 is an abundant number, since it is smaller than the sum of its proper divisors (352938144).

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

197026656 is a wasteful number, since it uses less digits than its factorization.

197026656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 197026656 is about 14036.6183961808. The cubic root of 197026656 is about 581.8910295386.

The spelling of 197026656 in words is "one hundred ninety-seven million, twenty-six thousand, six hundred fifty-six".