677378776 has 8 divisors (see below), whose sum is σ = 1270085220. Its totient is φ = 338689384.

The previous prime is 677378771. The next prime is 677378803. The reversal of 677378776 is 677873776.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 677378776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677378771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42336166 + ... + 42336181.

Almost surely, 2^677378776 is an apocalyptic number.

It is an amenable number.

677378776 is a deficient number, since it is larger than the sum of its proper divisors (592706444).

677378776 is a wasteful number, since it uses less digits than its factorization.

677378776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84672353 (or 84672349 counting only the distinct ones).

The product of its digits is 14521248, while the sum is 58.

The square root of 677378776 is about 26026.5014168251. The cubic root of 677378776 is about 878.2345701196.

The spelling of 677378776 in words is "six hundred seventy-seven million, three hundred seventy-eight thousand, seven hundred seventy-six".