403679 has 2 divisors, whose sum is σ = 403680. Its totient is φ = 403678.

The previous prime is 403661. The next prime is 403681. The reversal of 403679 is 976304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 403679 - 2¹² = 399583 is a prime.

Together with 403681, it forms a pair of twin primes.

It is a Chen prime.

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 403679.

It is not a weakly prime, because it can be changed into another prime (403649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201839 + 201840.

It is an arithmetic number, because the mean of its divisors is an integer number (201840).

2⁴⁰³⁶⁷⁹ is an apocalyptic number.

403679 is a deficient number, since it is larger than the sum of its proper divisors (1).

403679 is an equidigital number, since it uses as much as digits as its factorization.

403679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 403679 is about 635.3573797478. The cubic root of 403679 is about 73.9058334725.

The spelling of 403679 in words is "four hundred three thousand, six hundred seventy-nine".