997471066 has 16 divisors (see below), whose sum is σ = 1597731840. Its totient is φ = 466003440.

The previous prime is 997471021. The next prime is 997471091. The reversal of 997471066 is 660174799.

It is an unprimeable number.

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, 275586 + ... + 279181.

It is an arithmetic number, because the mean of its divisors is an integer number (99858240).

Almost surely, 2^997471066 is an apocalyptic number.

997471066 is a deficient number, since it is larger than the sum of its proper divisors (600260774).

997471066 is a wasteful number, since it uses less digits than its factorization.

997471066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554829.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 997471066 is about 31582.7653317438. The cubic root of 997471066 is about 999.1563103880.

The spelling of 997471066 in words is "nine hundred ninety-seven million, four hundred seventy-one thousand, sixty-six".