440497 has 2 divisors, whose sum is σ = 440498. Its totient is φ = 440496.

The previous prime is 440471. The next prime is 440501. The reversal of 440497 is 794044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246016 + 194481 = 496^2 + 441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (410497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220248 + 220249.

It is an arithmetic number, because the mean of its divisors is an integer number (220249).

2⁴⁴⁰⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

440497 is a deficient number, since it is larger than the sum of its proper divisors (1).

440497 is an equidigital number, since it uses as much as digits as its factorization.

440497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 440497 is about 663.6994801866. The cubic root of 440497 is about 76.0876758240.

The spelling of 440497 in words is "four hundred forty thousand, four hundred ninety-seven".