997275382 has 16 divisors (see below), whose sum is σ = 1576693440. Its totient is φ = 471779208.

The previous prime is 997275379. The next prime is 997275421. The reversal of 997275382 is 283572799.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13233 + ... + 46579.

It is an arithmetic number, because the mean of its divisors is an integer number (98543340).

Almost surely, 2^997275382 is an apocalyptic number.

997275382 is a deficient number, since it is larger than the sum of its proper divisors (579418058).

997275382 is a wasteful number, since it uses less digits than its factorization.

997275382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34155.

The product of its digits is 1905120, while the sum is 52.

The square root of 997275382 is about 31579.6672243391. The cubic root of 997275382 is about 999.0909679111.

The spelling of 997275382 in words is "nine hundred ninety-seven million, two hundred seventy-five thousand, three hundred eighty-two".