77783230 has 16 divisors (see below), whose sum is σ = 160011360. Its totient is φ = 26668512.

The previous prime is 77783227. The next prime is 77783243. The reversal of 77783230 is 3238777.

It is a self number, because there is not a number n which added to its sum of digits gives 77783230.

It is a congruent number.

It is an unprimeable number.

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, 555525 + ... + 555664.

It is an arithmetic number, because the mean of its divisors is an integer number (10000710).

Almost surely, 2^77783230 is an apocalyptic number.

77783230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77783230 is an abundant number, since it is smaller than the sum of its proper divisors (82228130).

77783230 is a wasteful number, since it uses less digits than its factorization.

77783230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111203.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 77783230 is about 8819.4801434098. The cubic root of 77783230 is about 426.8696957183.

The spelling of 77783230 in words is "seventy-seven million, seven hundred eighty-three thousand, two hundred thirty".