676890 has 64 divisors (see below), whose sum is σ = 1900800. Its totient is φ = 171072.

The previous prime is 676883. The next prime is 676891. The reversal of 676890 is 98676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676891) by changing a digit.

676890 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 31 ways as a sum of consecutive naturals, for example, 6156 + ... + 6264.

It is an arithmetic number, because the mean of its divisors is an integer number (29700).

2⁶⁷⁶⁸⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (950400).

676890 is an abundant number, since it is smaller than the sum of its proper divisors (1223910).

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

676890 is a wasteful number, since it uses less digits than its factorization.

676890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 676890 is about 822.7332496016. The cubic root of 676890 is about 87.8023283474.

The spelling of 676890 in words is "six hundred seventy-six thousand, eight hundred ninety".