197653950 has 216 divisors, whose sum is σ = 605331792. Its totient is φ = 46126080.

The previous prime is 197653943. The next prime is 197653961. The reversal of 197653950 is 59356791.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 197653896 and 197653905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1749094 + ... + 1749206.

It is an arithmetic number, because the mean of its divisors is an integer number (2802462).

Almost surely, 2^197653950 is an apocalyptic number.

197653950 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 197653950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302665896).

197653950 is an abundant number, since it is smaller than the sum of its proper divisors (407677842).

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

197653950 is a wasteful number, since it uses less digits than its factorization.

197653950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 197653950 is about 14058.9455507872. The cubic root of 197653950 is about 582.5079173956.

The spelling of 197653950 in words is "one hundred ninety-seven million, six hundred fifty-three thousand, nine hundred fifty".