786421125 has 96 divisors (see below), whose sum is σ = 1664582400. Its totient is φ = 349660800.

The previous prime is 786421087. The next prime is 786421147. The reversal of 786421125 is 521124687.

786421125 is a `hidden beast` number, since 7 + 8 + 642 + 1 + 1 + 2 + 5 = 666.

It is not a de Polignac number, because 786421125 - 2⁷ = 786420997 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 786421125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 290026 + ... + 292724.

It is an arithmetic number, because the mean of its divisors is an integer number (17339400).

Almost surely, 2^786421125 is an apocalyptic number.

786421125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

786421125 is an abundant number, since it is smaller than the sum of its proper divisors (878161275).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

786421125 is a wasteful number, since it uses less digits than its factorization.

786421125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764 (or 2751 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 786421125 is about 28043.2010476693. The cubic root of 786421125 is about 923.0354702939.

The spelling of 786421125 in words is "seven hundred eighty-six million, four hundred twenty-one thousand, one hundred twenty-five".