677212 has 24 divisors (see below), whose sum is σ = 1312416. Its totient is φ = 304128.

The previous prime is 677177. The next prime is 677213. The reversal of 677212 is 212776.

677212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677213) by changing a digit.

677212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348 + ... + 1780.

It is an arithmetic number, because the mean of its divisors is an integer number (54684).

2⁶⁷⁷²¹² is an apocalyptic number.

It is an amenable number.

677212 is a deficient number, since it is larger than the sum of its proper divisors (635204).

677212 is a wasteful number, since it uses less digits than its factorization.

677212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its digits is 1176, while the sum is 25.

The square root of 677212 is about 822.9289155207. The cubic root of 677212 is about 87.8162488110.

Adding to 677212 its reverse (212776), we get a palindrome (889988).

The spelling of 677212 in words is "six hundred seventy-seven thousand, two hundred twelve".