2847396321 has 125 divisors (see below), whose sum is σ = 5458322705. Its totient is φ = 1479166920.

The previous prime is 2847396287. The next prime is 2847396341. The reversal of 2847396321 is 1236937482.

The square root of 2847396321 is 53361.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

2847396321 is a `hidden beast` number, since 2 + 8 + 4 + 7 + 3 + 9 + 632 + 1 = 666.

It is not a de Polignac number, because 2847396321 - 2¹⁹ = 2846872033 is a prime.

Its product of digits (435456) is a multiple of the sum of its prime divisors (21).

It is not an unprimeable number, because it can be changed into a prime (2847396341) by changing a digit.

It is a polite number, since it can be written in 124 ways as a sum of consecutive naturals, for example, 258854206 + ... + 258854216.

Almost surely, 2^2847396321 is an apocalyptic number.

2847396321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2847396321 is the 53361-st square number.

2847396321 is the 26681-st centered octagonal number.

It is an amenable number.

2847396321 is a deficient number, since it is larger than the sum of its proper divisors (2610926384).

2847396321 is an frugal number, since it uses more digits than its factorization.

2847396321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 21 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The cubic root of 2847396321 is about 1417.3680535619.

The spelling of 2847396321 in words is "two billion, eight hundred forty-seven million, three hundred ninety-six thousand, three hundred twenty-one".