676642 has 4 divisors (see below), whose sum is σ = 1014966. Its totient is φ = 338320.

The previous prime is 676601. The next prime is 676649. The reversal of 676642 is 246676.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 674041 + 2601 = 821^2 + 51^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (676649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169159 + ... + 169162.

2⁶⁷⁶⁶⁴² is an apocalyptic number.

676642 is a deficient number, since it is larger than the sum of its proper divisors (338324).

676642 is a wasteful number, since it uses less digits than its factorization.

676642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338323.

The product of its digits is 12096, while the sum is 31.

The square root of 676642 is about 822.5825186569. The cubic root of 676642 is about 87.7916039868.

The spelling of 676642 in words is "six hundred seventy-six thousand, six hundred forty-two".