677381 has 4 divisors (see below), whose sum is σ = 699264. Its totient is φ = 655500.

The previous prime is 677371. The next prime is 677387. The reversal of 677381 is 183776.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677381 is a prime.

It is a super-2 number, since 2×677381² = 917690038322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10895 + ... + 10956.

It is an arithmetic number, because the mean of its divisors is an integer number (174816).

2⁶⁷⁷³⁸¹ is an apocalyptic number.

It is an amenable number.

677381 is a deficient number, since it is larger than the sum of its proper divisors (21883).

677381 is a wasteful number, since it uses less digits than its factorization.

677381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21882.

The product of its digits is 7056, while the sum is 32.

The square root of 677381 is about 823.0315911312. The cubic root of 677381 is about 87.8235531271.

The spelling of 677381 in words is "six hundred seventy-seven thousand, three hundred eighty-one".