197498838 has 32 divisors (see below), whose sum is σ = 413770752. Its totient is φ = 62726400.

The previous prime is 197498837. The next prime is 197498839. The reversal of 197498838 is 838894791.

It is an interprime number because it is at equal distance from previous prime (197498837) and next prime (197498839).

It is a super-2 number, since 2×197498838² = 78011582022700488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197498831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34758 + ... + 40038.

It is an arithmetic number, because the mean of its divisors is an integer number (12930336).

Almost surely, 2^197498838 is an apocalyptic number.

197498838 is an abundant number, since it is smaller than the sum of its proper divisors (216271914).

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

197498838 is a wasteful number, since it uses less digits than its factorization.

197498838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580.

The product of its digits is 3483648, while the sum is 57.

The square root of 197498838 is about 14053.4279803897. The cubic root of 197498838 is about 582.3555001466.

The spelling of 197498838 in words is "one hundred ninety-seven million, four hundred ninety-eight thousand, eight hundred thirty-eight".