997795288 has 32 divisors (see below), whose sum is σ = 2151770400. Its totient is φ = 424899072.

The previous prime is 997795283. The next prime is 997795301. The reversal of 997795288 is 882597799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997795283) 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 7 ways as a sum of consecutive naturals, for example, 47953 + ... + 65536.

It is an arithmetic number, because the mean of its divisors is an integer number (67242825).

Almost surely, 2^997795288 is an apocalyptic number.

It is an amenable number.

997795288 is an abundant number, since it is smaller than the sum of its proper divisors (1153975112).

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

997795288 is a wasteful number, since it uses less digits than its factorization.

997795288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113659 (or 113655 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 64.

The square root of 997795288 is about 31587.8978091294. The cubic root of 997795288 is about 999.2645552536.

The spelling of 997795288 in words is "nine hundred ninety-seven million, seven hundred ninety-five thousand, two hundred eighty-eight".