997486418 has 16 divisors (see below), whose sum is σ = 1503932184. Its totient is φ = 496181760.

The previous prime is 997486397. The next prime is 997486423. The reversal of 997486418 is 814684799.

It can be written as a sum of positive squares in 4 ways, for example, as 959946289 + 37540129 = 30983^2 + 6127^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586946 + ... + 588642.

Almost surely, 2^997486418 is an apocalyptic number.

997486418 is a deficient number, since it is larger than the sum of its proper divisors (506445766).

997486418 is a wasteful number, since it uses less digits than its factorization.

997486418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037.

The product of its digits is 3483648, while the sum is 56.

The square root of 997486418 is about 31583.0083747575. The cubic root of 997486418 is about 999.1614363409.

The spelling of 997486418 in words is "nine hundred ninety-seven million, four hundred eighty-six thousand, four hundred eighteen".