682423949 has 2 divisors, whose sum is σ = 682423950. Its totient is φ = 682423948.

The previous prime is 682423943. The next prime is 682423997. The reversal of 682423949 is 949324286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466128100 + 216295849 = 21590^2 + 14707^2 .

It is a cyclic number.

It is not a de Polignac number, because 682423949 - 2²⁴ = 665646733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (682423943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341211974 + 341211975.

It is an arithmetic number, because the mean of its divisors is an integer number (341211975).

Almost surely, 2^682423949 is an apocalyptic number.

It is an amenable number.

682423949 is a deficient number, since it is larger than the sum of its proper divisors (1).

682423949 is an equidigital number, since it uses as much as digits as its factorization.

682423949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 47.

The square root of 682423949 is about 26123.2453764841. The cubic root of 682423949 is about 880.4095670128.

The spelling of 682423949 in words is "six hundred eighty-two million, four hundred twenty-three thousand, nine hundred forty-nine".