169398864 has 100 divisors (see below), whose sum is σ = 511696416. Its totient is φ = 54001728.

The previous prime is 169398833. The next prime is 169398871. The reversal of 169398864 is 468893961.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 169398864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26967 + ... + 32649.

Almost surely, 2^169398864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169398864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255848208).

169398864 is an abundant number, since it is smaller than the sum of its proper divisors (342297552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169398864 is a wasteful number, since it uses less digits than its factorization.

169398864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726 (or 5711 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 169398864 is about 13015.3318820536. The cubic root of 169398864 is about 553.3120960866.

The spelling of 169398864 in words is "one hundred sixty-nine million, three hundred ninety-eight thousand, eight hundred sixty-four".