197620500 has 384 divisors, whose sum is σ = 754790400. Its totient is φ = 38976000.

The previous prime is 197620499. The next prime is 197620519. The reversal of 197620500 is 5026791.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3349471 + ... + 3349529.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^197620500 is an apocalyptic number.

197620500 is a gapful number since it is divisible by the number (10) 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 197620500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377395200).

197620500 is an abundant number, since it is smaller than the sum of its proper divisors (557169900).

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

197620500 is a wasteful number, since it uses less digits than its factorization.

197620500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 197620500 is about 14057.7558664248. The cubic root of 197620500 is about 582.4750552661.

The spelling of 197620500 in words is "one hundred ninety-seven million, six hundred twenty thousand, five hundred".