823280377 has 8 divisors (see below), whose sum is σ = 882294336. Its totient is φ = 766201392.

The previous prime is 823280351. The next prime is 823280399. The reversal of 823280377 is 773082328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-823280377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823280347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482863 + ... + 484564.

It is an arithmetic number, because the mean of its divisors is an integer number (110286792).

Almost surely, 2^823280377 is an apocalyptic number.

It is an amenable number.

823280377 is a deficient number, since it is larger than the sum of its proper divisors (59013959).

823280377 is a wasteful number, since it uses less digits than its factorization.

823280377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967487.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 823280377 is about 28692.8628233573. The cubic root of 823280377 is about 937.2366319637.

The spelling of 823280377 in words is "eight hundred twenty-three million, two hundred eighty thousand, three hundred seventy-seven".