997495418 has 32 divisors (see below), whose sum is σ = 1598555520. Its totient is φ = 465791040.

The previous prime is 997495393. The next prime is 997495481. The reversal of 997495418 is 814594799.

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 15 ways as a sum of consecutive naturals, for example, 424928 + ... + 427268.

It is an arithmetic number, because the mean of its divisors is an integer number (49954860).

Almost surely, 2^997495418 is an apocalyptic number.

997495418 is a deficient number, since it is larger than the sum of its proper divisors (601060102).

997495418 is a wasteful number, since it uses less digits than its factorization.

997495418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582.

The product of its digits is 3265920, while the sum is 56.

The square root of 997495418 is about 31583.1508561131. The cubic root of 997495418 is about 999.1644413696.

The spelling of 997495418 in words is "nine hundred ninety-seven million, four hundred ninety-five thousand, four hundred eighteen".