677889387 has 12 divisors (see below), whose sum is σ = 1119055600. Its totient is φ = 387365328.

The previous prime is 677889383. The next prime is 677889389. The reversal of 677889387 is 783988776.

It is not a de Polignac number, because 677889387 - 2² = 677889383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 10760149 = 677889387 / (6 + 7 + 7 + 8 + 8 + 9 + 3 + 8 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677889383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5380012 + ... + 5380137.

Almost surely, 2^677889387 is an apocalyptic number.

677889387 is a deficient number, since it is larger than the sum of its proper divisors (441166213).

677889387 is a wasteful number, since it uses less digits than its factorization.

677889387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10760162 (or 10760159 counting only the distinct ones).

The product of its digits is 28449792, while the sum is 63.

The square root of 677889387 is about 26036.3090126078. The cubic root of 677889387 is about 878.4551870119.

The spelling of 677889387 in words is "six hundred seventy-seven million, eight hundred eighty-nine thousand, three hundred eighty-seven".