8279397783 has 12 divisors (see below), whose sum is σ = 12662608608. Its totient is φ = 5194916160.

The previous prime is 8279397781. The next prime is 8279397869. The reversal of 8279397783 is 3877939728.

It is not a de Polignac number, because 8279397783 - 2¹ = 8279397781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8279397783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8279397781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27056703 + ... + 27057008.

It is an arithmetic number, because the mean of its divisors is an integer number (1055217384).

Almost surely, 2^8279397783 is an apocalyptic number.

8279397783 is a deficient number, since it is larger than the sum of its proper divisors (4383210825).

8279397783 is a wasteful number, since it uses less digits than its factorization.

8279397783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54113734 (or 54113731 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The square root of 8279397783 is about 90991.1961840265. The cubic root of 8279397783 is about 2023.0172358133.

The spelling of 8279397783 in words is "eight billion, two hundred seventy-nine million, three hundred ninety-seven thousand, seven hundred eighty-three".