169720996 has 24 divisors (see below), whose sum is σ = 331037280. Its totient is φ = 75664512.

The previous prime is 169720987. The next prime is 169721011. The reversal of 169720996 is 699027961.

169720996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64390 + ... + 66973.

It is an arithmetic number, because the mean of its divisors is an integer number (13793220).

Almost surely, 2^169720996 is an apocalyptic number.

It is an amenable number.

169720996 is a deficient number, since it is larger than the sum of its proper divisors (161316284).

169720996 is a wasteful number, since it uses less digits than its factorization.

169720996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131403 (or 131401 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 169720996 is about 13027.7011018829. The cubic root of 169720996 is about 553.6626034945.

The spelling of 169720996 in words is "one hundred sixty-nine million, seven hundred twenty thousand, nine hundred ninety-six".