490397 has 4 divisors (see below), whose sum is σ = 497376. Its totient is φ = 483420.

The previous prime is 490393. The next prime is 490417. The reversal of 490397 is 793094.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793094 = 2 ⋅396547.

It is a cyclic number.

It is not a de Polignac number, because 490397 - 2² = 490393 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 (490393) 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, 3383 + ... + 3524.

It is an arithmetic number, because the mean of its divisors is an integer number (124344).

2⁴⁹⁰³⁹⁷ is an apocalyptic number.

It is an amenable number.

490397 is a deficient number, since it is larger than the sum of its proper divisors (6979).

490397 is an equidigital number, since it uses as much as digits as its factorization.

490397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 490397 is about 700.2835140141. The cubic root of 490397 is about 78.8586373315.

The spelling of 490397 in words is "four hundred ninety thousand, three hundred ninety-seven".