197082757 has 16 divisors (see below), whose sum is σ = 207128880. Its totient is φ = 187342848.

The previous prime is 197082737. The next prime is 197082773. The reversal of 197082757 is 757280791.

It can be written as a sum of positive squares in 8 ways, for example, as 14130081 + 182952676 = 3759^2 + 13526^2 .

It is a cyclic number.

It is not a de Polignac number, because 197082757 - 2⁷ = 197082629 is a prime.

It is a super-5 number, since 5×197082757⁵ (a number of 43 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197082727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319113 + ... + 319729.

It is an arithmetic number, because the mean of its divisors is an integer number (12945555).

Almost surely, 2^197082757 is an apocalyptic number.

It is an amenable number.

197082757 is a deficient number, since it is larger than the sum of its proper divisors (10046123).

197082757 is an equidigital number, since it uses as much as digits as its factorization.

197082757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 246960, while the sum is 46.

The square root of 197082757 is about 14038.6166341275. The cubic root of 197082757 is about 581.9462531505.

The spelling of 197082757 in words is "one hundred ninety-seven million, eighty-two thousand, seven hundred fifty-seven".