197894970 has 192 divisors, whose sum is σ = 643878144. Its totient is φ = 41057280.

The previous prime is 197894969. The next prime is 197894989. The reversal of 197894970 is 79498791.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 597705 + ... + 598035.

It is an arithmetic number, because the mean of its divisors is an integer number (3353532).

Almost surely, 2^197894970 is an apocalyptic number.

197894970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 197894970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321939072).

197894970 is an abundant number, since it is smaller than the sum of its proper divisors (445983174).

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

197894970 is a wasteful number, since it uses less digits than its factorization.

197894970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 197894970 is about 14067.5147058747. The cubic root of 197894970 is about 582.7445920322.

The spelling of 197894970 in words is "one hundred ninety-seven million, eight hundred ninety-four thousand, nine hundred seventy".