197090316 has 72 divisors (see below), whose sum is σ = 529729200. Its totient is φ = 61572096.

The previous prime is 197090279. The next prime is 197090353. The reversal of 197090316 is 613090791.

It is an interprime number because it is at equal distance from previous prime (197090279) and next prime (197090353).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187360 + ... + 188408.

It is an arithmetic number, because the mean of its divisors is an integer number (7357350).

Almost surely, 2^197090316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197090316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264864600).

197090316 is an abundant number, since it is smaller than the sum of its proper divisors (332638884).

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

197090316 is a wasteful number, since it uses less digits than its factorization.

197090316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 197090316 is about 14038.8858532292. The cubic root of 197090316 is about 581.9536931308.

The spelling of 197090316 in words is "one hundred ninety-seven million, ninety thousand, three hundred sixteen".