402306679 has 2 divisors, whose sum is σ = 402306680. Its totient is φ = 402306678.

The previous prime is 402306677. The next prime is 402306689. The reversal of 402306679 is 976603204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402306679 - 2¹ = 402306677 is a prime.

Together with 402306677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402306677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201153339 + 201153340.

It is an arithmetic number, because the mean of its divisors is an integer number (201153340).

Almost surely, 2^402306679 is an apocalyptic number.

402306679 is a deficient number, since it is larger than the sum of its proper divisors (1).

402306679 is an equidigital number, since it uses as much as digits as its factorization.

402306679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 402306679 is about 20057.5840768523. The cubic root of 402306679 is about 738.2198989494.

The spelling of 402306679 in words is "four hundred two million, three hundred six thousand, six hundred seventy-nine".