197725026 has 32 divisors (see below), whose sum is σ = 403116480. Its totient is φ = 64641024.

The previous prime is 197724983. The next prime is 197725049. The reversal of 197725026 is 620527791.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 83365 + ... + 85703.

It is an arithmetic number, because the mean of its divisors is an integer number (12597390).

Almost surely, 2^197725026 is an apocalyptic number.

197725026 is an abundant number, since it is smaller than the sum of its proper divisors (205391454).

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

197725026 is a wasteful number, since it uses less digits than its factorization.

197725026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 197725026 is about 14061.4731091732. The cubic root of 197725026 is about 582.5777319562.

The spelling of 197725026 in words is "one hundred ninety-seven million, seven hundred twenty-five thousand, twenty-six".