823280973 has 16 divisors (see below), whose sum is σ = 1102864896. Its totient is φ = 546283440.

The previous prime is 823280951. The next prime is 823280977. The reversal of 823280973 is 379082328.

It is not a de Polignac number, because 823280973 - 2¹³ = 823272781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823280977) 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, 1014738 + ... + 1015548.

It is an arithmetic number, because the mean of its divisors is an integer number (68929056).

Almost surely, 2^823280973 is an apocalyptic number.

It is an amenable number.

823280973 is a deficient number, since it is larger than the sum of its proper divisors (279583923).

823280973 is a wasteful number, since it uses less digits than its factorization.

823280973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 823280973 is about 28692.8732092135. The cubic root of 823280973 is about 937.2368581292.

The spelling of 823280973 in words is "eight hundred twenty-three million, two hundred eighty thousand, nine hundred seventy-three".