1696139 has 4 divisors (see below), whose sum is σ = 1700160. Its totient is φ = 1692120.

The previous prime is 1696127. The next prime is 1696153. The reversal of 1696139 is 9316961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1696139 - 2¹² = 1692043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1696099 and 1696108.

It is not an unprimeable number, because it can be changed into a prime (1696109) 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 in 3 ways as a sum of consecutive naturals, for example, 1292 + ... + 2249.

It is an arithmetic number, because the mean of its divisors is an integer number (425040).

2^1696139 is an apocalyptic number.

1696139 is a deficient number, since it is larger than the sum of its proper divisors (4021).

1696139 is an equidigital number, since it uses as much as digits as its factorization.

1696139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its digits is 8748, while the sum is 35.

The square root of 1696139 is about 1302.3590134828. The cubic root of 1696139 is about 119.2578970051.

The spelling of 1696139 in words is "one million, six hundred ninety-six thousand, one hundred thirty-nine".