677018385 has 16 divisors (see below), whose sum is σ = 1203588480. Its totient is φ = 361076400.

The previous prime is 677018371. The next prime is 677018401. The reversal of 677018385 is 583810776.

It is not a de Polignac number, because 677018385 - 2¹⁰ = 677017361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 677018385.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2507341 + ... + 2507610.

It is an arithmetic number, because the mean of its divisors is an integer number (75224280).

Almost surely, 2^677018385 is an apocalyptic number.

It is an amenable number.

677018385 is a deficient number, since it is larger than the sum of its proper divisors (526570095).

677018385 is a wasteful number, since it uses less digits than its factorization.

677018385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014965 (or 5014959 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 677018385 is about 26019.5769565917. The cubic root of 677018385 is about 878.0787912092.

Adding to 677018385 its product of nonzero digits (282240), we get a square (677300625 = 26025²).

The spelling of 677018385 in words is "six hundred seventy-seven million, eighteen thousand, three hundred eighty-five".