499679 has 2 divisors, whose sum is σ = 499680. Its totient is φ = 499678.

The previous prime is 499673. The next prime is 499687. The reversal of 499679 is 976994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 499679 - 2⁴ = 499663 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249839 + 249840.

It is an arithmetic number, because the mean of its divisors is an integer number (249840).

2⁴⁹⁹⁶⁷⁹ is an apocalyptic number.

499679 is a deficient number, since it is larger than the sum of its proper divisors (1).

499679 is an equidigital number, since it uses as much as digits as its factorization.

499679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 44.

The square root of 499679 is about 706.8797634676. The cubic root of 499679 is about 79.3530637710.

The spelling of 499679 in words is "four hundred ninety-nine thousand, six hundred seventy-nine".