80778430 has 16 divisors (see below), whose sum is σ = 148495680. Its totient is φ = 31623712.

The previous prime is 80778421. The next prime is 80778431. The reversal of 80778430 is 3487708.

It is a self number, because there is not a number n which added to its sum of digits gives 80778430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80778431) 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 7 ways as a sum of consecutive naturals, for example, 85465 + ... + 86404.

It is an arithmetic number, because the mean of its divisors is an integer number (9280980).

Almost surely, 2^80778430 is an apocalyptic number.

80778430 is a deficient number, since it is larger than the sum of its proper divisors (67717250).

80778430 is a wasteful number, since it uses less digits than its factorization.

80778430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171923.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 80778430 is about 8987.6821261102. The cubic root of 80778430 is about 432.2799932423.

The spelling of 80778430 in words is "eighty million, seven hundred seventy-eight thousand, four hundred thirty".