161679384 has 96 divisors (see below), whose sum is σ = 478707840. Its totient is φ = 49075200.

The previous prime is 161679361. The next prime is 161679407. The reversal of 161679384 is 483976161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161679361) and next prime (161679407).

It is a super-2 number, since 2×161679384² = 52280446421238912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35814 + ... + 40074.

It is an arithmetic number, because the mean of its divisors is an integer number (4986540).

Almost surely, 2^161679384 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 161679384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239353920).

161679384 is an abundant number, since it is smaller than the sum of its proper divisors (317028456).

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

161679384 is a wasteful number, since it uses less digits than its factorization.

161679384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321 (or 4314 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 161679384 is about 12715.3208374779. The cubic root of 161679384 is about 544.7763119847.

The spelling of 161679384 in words is "one hundred sixty-one million, six hundred seventy-nine thousand, three hundred eighty-four".