197021088 has 72 divisors (see below), whose sum is σ = 611222976. Its totient is φ = 59702400.

The previous prime is 197021081. The next prime is 197021107. The reversal of 197021088 is 880120791.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (197021081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27928 + ... + 34263.

It is an arithmetic number, because the mean of its divisors is an integer number (8489208).

Almost surely, 2^197021088 is an apocalyptic number.

197021088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

197021088 is an abundant number, since it is smaller than the sum of its proper divisors (414201888).

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

197021088 is a wasteful number, since it uses less digits than its factorization.

197021088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62218 (or 62207 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 197021088 is about 14036.4200564104. The cubic root of 197021088 is about 581.8855480472.

The spelling of 197021088 in words is "one hundred ninety-seven million, twenty-one thousand, eighty-eight".