677555078 has 8 divisors (see below), whose sum is σ = 1016850072. Its totient is φ = 338605056.

The previous prime is 677555071. The next prime is 677555089. The reversal of 677555078 is 870555776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677555071) 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, 81275 + ... + 89222.

It is an arithmetic number, because the mean of its divisors is an integer number (127106259).

Almost surely, 2^677555078 is an apocalyptic number.

677555078 is a deficient number, since it is larger than the sum of its proper divisors (339294994).

677555078 is a wasteful number, since it uses less digits than its factorization.

677555078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172486.

The product of its (nonzero) digits is 2058000, while the sum is 50.

The square root of 677555078 is about 26029.8881672588. Note that the first 3 decimals coincide. The cubic root of 677555078 is about 878.3107564846.

The spelling of 677555078 in words is "six hundred seventy-seven million, five hundred fifty-five thousand, seventy-eight".