197417090 has 32 divisors (see below), whose sum is σ = 405200880. Its totient is φ = 68603904.

The previous prime is 197417063. The next prime is 197417153. The reversal of 197417090 is 90714791.

It can be written as a sum of positive squares in 8 ways, for example, as 120802081 + 76615009 = 10991^2 + 8753^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42455 + ... + 46874.

Almost surely, 2^197417090 is an apocalyptic number.

197417090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197417090 is an abundant number, since it is smaller than the sum of its proper divisors (207783790).

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

197417090 is a wasteful number, since it uses less digits than its factorization.

197417090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89366.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 197417090 is about 14050.5192074884. The cubic root of 197417090 is about 582.2751402353.

The spelling of 197417090 in words is "one hundred ninety-seven million, four hundred seventeen thousand, ninety".