780481 has 4 divisors (see below), whose sum is σ = 840532. Its totient is φ = 720432.

The previous prime is 780469. The next prime is 780499. The reversal of 780481 is 184087.

780481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 370881 + 409600 = 609^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 780481 - 2¹⁵ = 747713 is a prime.

It is a super-2 number, since 2×780481² = 1218301182722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (780401) 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, 30006 + ... + 30031.

It is an arithmetic number, because the mean of its divisors is an integer number (210133).

2⁷⁸⁰⁴⁸¹ is an apocalyptic number.

It is an amenable number.

780481 is a deficient number, since it is larger than the sum of its proper divisors (60051).

780481 is a wasteful number, since it uses less digits than its factorization.

780481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60050.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 780481 is about 883.4483572909. The cubic root of 780481 is about 92.0705586632.

The spelling of 780481 in words is "seven hundred eighty thousand, four hundred eighty-one".