997061 has 4 divisors (see below), whose sum is σ = 1073772. Its totient is φ = 920352.

The previous prime is 997057. The next prime is 997069. The reversal of 997061 is 160799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160799 = 113 ⋅1423.

It can be written as a sum of positive squares in 2 ways, for example, as 220900 + 776161 = 470^2 + 881^2 .

It is a cyclic number.

It is not a de Polignac number, because 997061 - 2² = 997057 is a prime.

It is a super-3 number, since 3×997061³ = 2973626663330213943, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38336 + ... + 38361.

It is an arithmetic number, because the mean of its divisors is an integer number (268443).

2⁹⁹⁷⁰⁶¹ is an apocalyptic number.

It is an amenable number.

997061 is a deficient number, since it is larger than the sum of its proper divisors (76711).

997061 is a wasteful number, since it uses less digits than its factorization.

997061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76710.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 997061 is about 998.5294186953. The cubic root of 997061 is about 99.9019372016.

The spelling of 997061 in words is "nine hundred ninety-seven thousand, sixty-one".