699743 has 6 divisors (see below), whose sum is σ = 769272. Its totient is φ = 636020.

The previous prime is 699733. The next prime is 699757. The reversal of 699743 is 347996.

It is a de Polignac number, because none of the positive numbers 2^k-699743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 699697 and 699706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2771 + ... + 3012.

It is an arithmetic number, because the mean of its divisors is an integer number (128212).

2⁶⁹⁹⁷⁴³ is an apocalyptic number.

699743 is a deficient number, since it is larger than the sum of its proper divisors (69529).

699743 is a wasteful number, since it uses less digits than its factorization.

699743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5805 (or 5794 counting only the distinct ones).

The product of its digits is 40824, while the sum is 38.

The square root of 699743 is about 836.5064255581. The cubic root of 699743 is about 88.7795325904.

The spelling of 699743 in words is "six hundred ninety-nine thousand, seven hundred forty-three".