162878423 has 4 divisors (see below), whose sum is σ = 164557680. Its totient is φ = 161199168.

The previous prime is 162878369. The next prime is 162878437. The reversal of 162878423 is 324878261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324878261 = 7559 ⋅42979.

It is a cyclic number.

It is not a de Polignac number, because 162878423 - 2¹⁴ = 162862039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162878483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839483 + ... + 839676.

It is an arithmetic number, because the mean of its divisors is an integer number (41139420).

Almost surely, 2^162878423 is an apocalyptic number.

162878423 is a deficient number, since it is larger than the sum of its proper divisors (1679257).

162878423 is an equidigital number, since it uses as much as digits as its factorization.

162878423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679256.

The product of its digits is 129024, while the sum is 41.

The square root of 162878423 is about 12762.3831238527. The cubic root of 162878423 is about 546.1197112583.

The spelling of 162878423 in words is "one hundred sixty-two million, eight hundred seventy-eight thousand, four hundred twenty-three".