480391 has 2 divisors, whose sum is σ = 480392. Its totient is φ = 480390.

The previous prime is 480383. The next prime is 480409. The reversal of 480391 is 193084.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 480391 - 2³ = 480383 is a prime.

480391 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240195 + 240196.

It is an arithmetic number, because the mean of its divisors is an integer number (240196).

2⁴⁸⁰³⁹¹ is an apocalyptic number.

480391 is a deficient number, since it is larger than the sum of its proper divisors (1).

480391 is an equidigital number, since it uses as much as digits as its factorization.

480391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 480391 is about 693.1024455302. The cubic root of 480391 is about 78.3186069596.

The spelling of 480391 in words is "four hundred eighty thousand, three hundred ninety-one".