162379821 has 16 divisors (see below), whose sum is σ = 219830400. Its totient is φ = 106603200.

The previous prime is 162379817. The next prime is 162379823. The reversal of 162379821 is 128973261.

It is not a de Polignac number, because 162379821 - 2² = 162379817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162379821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162379823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58951 + ... + 61643.

It is an arithmetic number, because the mean of its divisors is an integer number (13739400).

Almost surely, 2^162379821 is an apocalyptic number.

It is an amenable number.

162379821 is a deficient number, since it is larger than the sum of its proper divisors (57450579).

162379821 is a wasteful number, since it uses less digits than its factorization.

162379821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996.

The product of its digits is 36288, while the sum is 39.

The square root of 162379821 is about 12742.8341039190. The cubic root of 162379821 is about 545.5618827071.

The spelling of 162379821 in words is "one hundred sixty-two million, three hundred seventy-nine thousand, eight hundred twenty-one".