699945 has 8 divisors (see below), whose sum is σ = 1119936. Its totient is φ = 373296.

The previous prime is 699943. The next prime is 699947. The reversal of 699945 is 549996.

It is a happy number.

699945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (699943) and next prime (699947).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 699945 - 2¹ = 699943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 699897 and 699906.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 699945.

It is not an unprimeable number, because it can be changed into a prime (699943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23317 + ... + 23346.

It is an arithmetic number, because the mean of its divisors is an integer number (139992).

2⁶⁹⁹⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

699945 is a deficient number, since it is larger than the sum of its proper divisors (419991).

699945 is a wasteful number, since it uses less digits than its factorization.

699945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46671.

The product of its digits is 87480, while the sum is 42.

The square root of 699945 is about 836.6271571017. The cubic root of 699945 is about 88.7880746505.

The spelling of 699945 in words is "six hundred ninety-nine thousand, nine hundred forty-five".