997461 has 8 divisors (see below), whose sum is σ = 1477760. Its totient is φ = 664956.

The previous prime is 997453. The next prime is 997463. The reversal of 997461 is 164799.

It is not a de Polignac number, because 997461 - 2³ = 997453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18445 + ... + 18498.

It is an arithmetic number, because the mean of its divisors is an integer number (184720).

2⁹⁹⁷⁴⁶¹ is an apocalyptic number.

It is an amenable number.

997461 is a deficient number, since it is larger than the sum of its proper divisors (480299).

997461 is a wasteful number, since it uses less digits than its factorization.

997461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36952 (or 36946 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 997461 is about 998.7296931603. The cubic root of 997461 is about 99.9152949374.

The spelling of 997461 in words is "nine hundred ninety-seven thousand, four hundred sixty-one".