683421610 has 16 divisors (see below), whose sum is σ = 1236958632. Its totient is φ = 271857600.

The previous prime is 683421601. The next prime is 683421619. The reversal of 683421610 is 16124386.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (683421601) and next prime (683421619).

It can be written as a sum of positive squares in 4 ways, for example, as 91910569 + 591511041 = 9587^2 + 24321^2 .

It is not an unprimeable number, because it can be changed into a prime (683421619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186981 + ... + 190600.

Almost surely, 2^683421610 is an apocalyptic number.

683421610 is a deficient number, since it is larger than the sum of its proper divisors (553537022).

683421610 is a wasteful number, since it uses less digits than its factorization.

683421610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377769.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 683421610 is about 26142.3336754774. Note that the first 3 decimals coincide. The cubic root of 683421610 is about 880.8383926261.

Adding to 683421610 its reverse (16124386), we get a palindrome (699545996).

The spelling of 683421610 in words is "six hundred eighty-three million, four hundred twenty-one thousand, six hundred ten".