699947 has 2 divisors, whose sum is σ = 699948. Its totient is φ = 699946.

The previous prime is 699943. The next prime is 699953. The reversal of 699947 is 749996.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 699947 - 2² = 699943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 699898 and 699907.

It is not a weakly prime, because it can be changed into another prime (699943) 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, 349973 + 349974.

It is an arithmetic number, because the mean of its divisors is an integer number (349974).

2⁶⁹⁹⁹⁴⁷ is an apocalyptic number.

699947 is a deficient number, since it is larger than the sum of its proper divisors (1).

699947 is an equidigital number, since it uses as much as digits as its factorization.

699947 is an odious number, because the sum of its binary digits is odd.

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

The square root of 699947 is about 836.6283523764. The cubic root of 699947 is about 88.7881592171.

The spelling of 699947 in words is "six hundred ninety-nine thousand, nine hundred forty-seven".