6077778 has 16 divisors (see below), whose sum is σ = 13892160. Its totient is φ = 1736496.

The previous prime is 6077759. The next prime is 6077809. The reversal of 6077778 is 8777706.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 144709 = 6077778 / (6 + 0 + 7 + 7 + 7 + 7 + 8).

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, 72313 + ... + 72396.

It is an arithmetic number, because the mean of its divisors is an integer number (868260).

Almost surely, 2^6077778 is an apocalyptic number.

6077778 is an abundant number, since it is smaller than the sum of its proper divisors (7814382).

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

6077778 is a wasteful number, since it uses less digits than its factorization.

6077778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144721.

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 6077778 is about 2465.3149900165. The cubic root of 6077778 is about 182.4938685624.

It can be divided in two parts, 607 and 7778, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 6077778 in words is "six million, seventy-seven thousand, seven hundred seventy-eight".