169690039 has 8 divisors (see below), whose sum is σ = 180606240. Its totient is φ = 158877696.

The previous prime is 169690019. The next prime is 169690043. The reversal of 169690039 is 930096961.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169690039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169689977 and 169690004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169690019) 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, 22579 + ... + 29140.

It is an arithmetic number, because the mean of its divisors is an integer number (22575780).

Almost surely, 2^169690039 is an apocalyptic number.

169690039 is a deficient number, since it is larger than the sum of its proper divisors (10916201).

169690039 is a wasteful number, since it uses less digits than its factorization.

169690039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51929.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 169690039 is about 13026.5129255684. The cubic root of 169690039 is about 553.6289388805.

The spelling of 169690039 in words is "one hundred sixty-nine million, six hundred ninety thousand, thirty-nine".