677162538 has 64 divisors (see below), whose sum is σ = 1658321280. Its totient is φ = 203503104.

The previous prime is 677162537. The next prime is 677162539. The reversal of 677162538 is 835261776.

It is an interprime number because it is at equal distance from previous prime (677162537) and next prime (677162539).

It is a junction number, because it is equal to n+sod(n) for n = 677162493 and 677162502.

It is not an unprimeable number, because it can be changed into a prime (677162531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18970 + ... + 41402.

It is an arithmetic number, because the mean of its divisors is an integer number (25911270).

Almost surely, 2^677162538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677162538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829160640).

677162538 is an abundant number, since it is smaller than the sum of its proper divisors (981158742).

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

677162538 is a wasteful number, since it uses less digits than its factorization.

677162538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22500 (or 22494 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 677162538 is about 26022.3468964657. The cubic root of 677162538 is about 878.1411079360.

The spelling of 677162538 in words is "six hundred seventy-seven million, one hundred sixty-two thousand, five hundred thirty-eight".