490615 has 4 divisors (see below), whose sum is σ = 588744. Its totient is φ = 392488.

The previous prime is 490591. The next prime is 490619. The reversal of 490615 is 516094.

490615 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490615 - 2⁹ = 490103 is a prime.

It is a Duffinian number.

490615 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 490615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490619) 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, 49057 + ... + 49066.

It is an arithmetic number, because the mean of its divisors is an integer number (147186).

2⁴⁹⁰⁶¹⁵ is an apocalyptic number.

490615 is a deficient number, since it is larger than the sum of its proper divisors (98129).

490615 is an equidigital number, since it uses as much as digits as its factorization.

490615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98128.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 490615 is about 700.4391479636. The cubic root of 490615 is about 78.8703208153.

The spelling of 490615 in words is "four hundred ninety thousand, six hundred fifteen".