677894 has 16 divisors (see below), whose sum is σ = 1191456. Its totient is φ = 283200.

The previous prime is 677891. The next prime is 677927. The reversal of 677894 is 498776.

677894 = 45² + 46² + ... + 128².

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 1164.

It is an arithmetic number, because the mean of its divisors is an integer number (74466).

2⁶⁷⁷⁸⁹⁴ is an apocalyptic number.

677894 is a deficient number, since it is larger than the sum of its proper divisors (513562).

677894 is a wasteful number, since it uses less digits than its factorization.

677894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231.

The product of its digits is 84672, while the sum is 41.

The square root of 677894 is about 823.3431848264. The cubic root of 677894 is about 87.8457179620.

The spelling of 677894 in words is "six hundred seventy-seven thousand, eight hundred ninety-four".