780828541 has 16 divisors (see below), whose sum is σ = 865728000. Its totient is φ = 700915248.

The previous prime is 780828539. The next prime is 780828551. The reversal of 780828541 is 145828087.

It is not a de Polignac number, because 780828541 - 2¹ = 780828539 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 (780828551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38410 + ... + 55108.

It is an arithmetic number, because the mean of its divisors is an integer number (54108000).

Almost surely, 2^780828541 is an apocalyptic number.

It is an amenable number.

780828541 is a deficient number, since it is larger than the sum of its proper divisors (84899459).

780828541 is a wasteful number, since it uses less digits than its factorization.

780828541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16848.

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 780828541 is about 27943.3094138830. The cubic root of 780828541 is about 920.8422269247.

The spelling of 780828541 in words is "seven hundred eighty million, eight hundred twenty-eight thousand, five hundred forty-one".