197707090 has 16 divisors (see below), whose sum is σ = 406711872. Its totient is φ = 67785264.

The previous prime is 197707087. The next prime is 197707091. The reversal of 197707090 is 90707791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (197707091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1412124 + ... + 1412263.

It is an arithmetic number, because the mean of its divisors is an integer number (25419492).

Almost surely, 2^197707090 is an apocalyptic number.

197707090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197707090 is an abundant number, since it is smaller than the sum of its proper divisors (209004782).

197707090 is a wasteful number, since it uses less digits than its factorization.

197707090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824401.

The product of its (nonzero) digits is 27783, while the sum is 40.

The square root of 197707090 is about 14060.8353236925. The cubic root of 197707090 is about 582.5601158584.

The spelling of 197707090 in words is "one hundred ninety-seven million, seven hundred seven thousand, ninety".