76819420 has 12 divisors (see below), whose sum is σ = 161320824. Its totient is φ = 30727760.

The previous prime is 76819411. The next prime is 76819423. The reversal of 76819420 is 2491867.

It is a self number, because there is not a number n which added to its sum of digits gives 76819420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76819423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1920466 + ... + 1920505.

It is an arithmetic number, because the mean of its divisors is an integer number (13443402).

Almost surely, 2^76819420 is an apocalyptic number.

It is an amenable number.

76819420 is an abundant number, since it is smaller than the sum of its proper divisors (84501404).

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

76819420 is a wasteful number, since it uses less digits than its factorization.

76819420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840980 (or 3840978 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 76819420 is about 8764.6688471385. The cubic root of 76819420 is about 425.0992524824.

The spelling of 76819420 in words is "seventy-six million, eight hundred nineteen thousand, four hundred twenty".