676949 has 16 divisors (see below), whose sum is σ = 857472. Its totient is φ = 520128.

The previous prime is 676943. The next prime is 676961. The reversal of 676949 is 949676.

It is a de Polignac number, because none of the positive numbers 2^k-676949 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 676949.

It is not an unprimeable number, because it can be changed into a prime (676943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3827 + ... + 3999.

It is an arithmetic number, because the mean of its divisors is an integer number (53592).

2⁶⁷⁶⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

676949 is a deficient number, since it is larger than the sum of its proper divisors (180523).

676949 is a wasteful number, since it uses less digits than its factorization.

676949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236.

The product of its digits is 81648, while the sum is 41.

The square root of 676949 is about 822.7691049134. The cubic root of 676949 is about 87.8048793216.

The spelling of 676949 in words is "six hundred seventy-six thousand, nine hundred forty-nine".