1689669413 has 8 divisors (see below), whose sum is σ = 1694286720. Its totient is φ = 1685059840.

The previous prime is 1689669367. The next prime is 1689669433. The reversal of 1689669413 is 3149669861.

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

It is a cyclic number.

It is not a de Polignac number, because 1689669413 - 2⁶ = 1689669349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689669433) 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, 874058 + ... + 875988.

It is an arithmetic number, because the mean of its divisors is an integer number (211785840).

Almost surely, 2^1689669413 is an apocalyptic number.

It is an amenable number.

1689669413 is a deficient number, since it is larger than the sum of its proper divisors (4617307).

1689669413 is a wasteful number, since it uses less digits than its factorization.

1689669413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867.

The product of its digits is 1679616, while the sum is 53.

The square root of 1689669413 is about 41105.5885859818. The cubic root of 1689669413 is about 1191.0607525027.

The spelling of 1689669413 in words is "one billion, six hundred eighty-nine million, six hundred sixty-nine thousand, four hundred thirteen".