816023379 has 4 divisors (see below), whose sum is σ = 1088031176. Its totient is φ = 544015584.

The previous prime is 816023359. The next prime is 816023389. The reversal of 816023379 is 973320618.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 816023379 - 2⁵ = 816023347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816023359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136003894 + ... + 136003899.

It is an arithmetic number, because the mean of its divisors is an integer number (272007794).

Almost surely, 2^816023379 is an apocalyptic number.

816023379 is a deficient number, since it is larger than the sum of its proper divisors (272007797).

816023379 is a wasteful number, since it uses less digits than its factorization.

816023379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272007796.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 816023379 is about 28566.1229255914. The cubic root of 816023379 is about 934.4746699627.

The spelling of 816023379 in words is "eight hundred sixteen million, twenty-three thousand, three hundred seventy-nine".