1699968 has 64 divisors (see below), whose sum is σ = 4773600. Its totient is φ = 534528.

The previous prime is 1699939. The next prime is 1699969. The reversal of 1699968 is 8699961.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1699969) 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, 7180 + ... + 7412.

2^1699968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1699968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2386800).

1699968 is an abundant number, since it is smaller than the sum of its proper divisors (3073632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1699968 is a wasteful number, since it uses less digits than its factorization.

1699968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 257 counting only the distinct ones).

The product of its digits is 209952, while the sum is 48.

The square root of 1699968 is about 1303.8282095430. The cubic root of 1699968 is about 119.3475703358.

The spelling of 1699968 in words is "one million, six hundred ninety-nine thousand, nine hundred sixty-eight".