197994972 has 96 divisors (see below), whose sum is σ = 560609280. Its totient is φ = 53127360.

The previous prime is 197994967. The next prime is 197995001. The reversal of 197994972 is 279499791.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208603 + ... + 209549.

It is an arithmetic number, because the mean of its divisors is an integer number (5839680).

Almost surely, 2^197994972 is an apocalyptic number.

197994972 is a gapful number since it is divisible by the number (12) 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 197994972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280304640).

197994972 is an abundant number, since it is smaller than the sum of its proper divisors (362614308).

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

197994972 is a wasteful number, since it uses less digits than its factorization.

197994972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1109 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 57.

The square root of 197994972 is about 14071.0686161357. The cubic root of 197994972 is about 582.8427346839.

The spelling of 197994972 in words is "one hundred ninety-seven million, nine hundred ninety-four thousand, nine hundred seventy-two".