997461838 has 16 divisors (see below), whose sum is σ = 1565091360. Its totient is φ = 475871616.

The previous prime is 997461823. The next prime is 997461869. The reversal of 997461838 is 838164799.

It is a congruent number.

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, 7695 + ... + 45322.

It is an arithmetic number, because the mean of its divisors is an integer number (97818210).

Almost surely, 2^997461838 is an apocalyptic number.

997461838 is a deficient number, since it is larger than the sum of its proper divisors (567629522).

997461838 is a wasteful number, since it uses less digits than its factorization.

997461838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53451.

The product of its digits is 2612736, while the sum is 55.

The square root of 997461838 is about 31582.6192390688. The cubic root of 997461838 is about 999.1532291816.

The spelling of 997461838 in words is "nine hundred ninety-seven million, four hundred sixty-one thousand, eight hundred thirty-eight".