997446466 has 4 divisors (see below), whose sum is σ = 1496169702. Its totient is φ = 498723232.

The previous prime is 997446449. The next prime is 997446469. The reversal of 997446466 is 664644799.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 641558241 + 355888225 = 25329^2 + 18865^2 .

It is not an unprimeable number, because it can be changed into a prime (997446469) 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 as a sum of consecutive naturals, namely, 249361615 + ... + 249361618.

Almost surely, 2^997446466 is an apocalyptic number.

997446466 is a deficient number, since it is larger than the sum of its proper divisors (498723236).

997446466 is a wasteful number, since it uses less digits than its factorization.

997446466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498723235.

The product of its digits is 7838208, while the sum is 55.

The square root of 997446466 is about 31582.3758764283. The cubic root of 997446466 is about 999.1480964665.

The spelling of 997446466 in words is "nine hundred ninety-seven million, four hundred forty-six thousand, four hundred sixty-six".