683724149 has 2 divisors, whose sum is σ = 683724150. Its totient is φ = 683724148.

The previous prime is 683724131. The next prime is 683724161. The reversal of 683724149 is 941427386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349017124 + 334707025 = 18682^2 + 18295^2 .

It is a cyclic number.

It is not a de Polignac number, because 683724149 - 2⁸ = 683723893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683724169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341862074 + 341862075.

It is an arithmetic number, because the mean of its divisors is an integer number (341862075).

Almost surely, 2^683724149 is an apocalyptic number.

It is an amenable number.

683724149 is a deficient number, since it is larger than the sum of its proper divisors (1).

683724149 is an equidigital number, since it uses as much as digits as its factorization.

683724149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 683724149 is about 26148.1194161263. The cubic root of 683724149 is about 880.9683507900.

The spelling of 683724149 in words is "six hundred eighty-three million, seven hundred twenty-four thousand, one hundred forty-nine".