169966039 has 4 divisors (see below), whose sum is σ = 178911640. Its totient is φ = 161020440.

The previous prime is 169966031. The next prime is 169966061. The reversal of 169966039 is 930669961.

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

It is not a de Polignac number, because 169966039 - 2³ = 169966031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169965983 and 169966001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169966031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4472772 + ... + 4472809.

It is an arithmetic number, because the mean of its divisors is an integer number (44727910).

Almost surely, 2^169966039 is an apocalyptic number.

169966039 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

169966039 is a deficient number, since it is larger than the sum of its proper divisors (8945601).

169966039 is an equidigital number, since it uses as much as digits as its factorization.

169966039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8945600.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 169966039 is about 13037.1024004569. The cubic root of 169966039 is about 553.9289345258.

The spelling of 169966039 in words is "one hundred sixty-nine million, nine hundred sixty-six thousand, thirty-nine".