8294463621 has 12 divisors (see below), whose sum is σ = 11990290572. Its totient is φ = 5525304576.

The previous prime is 8294463607. The next prime is 8294463643. The reversal of 8294463621 is 1263644928.

8294463621 is a `hidden beast` number, since 8 + 2 + 9 + 4 + 4 + 636 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6446323521 + 1848140100 = 80289^2 + 42990^2 .

It is not a de Polignac number, because 8294463621 - 2⁹ = 8294463109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8294461621) 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, 349356 + ... + 372341.

It is an arithmetic number, because the mean of its divisors is an integer number (999190881).

Almost surely, 2^8294463621 is an apocalyptic number.

It is an amenable number.

8294463621 is a deficient number, since it is larger than the sum of its proper divisors (3695826951).

8294463621 is a wasteful number, since it uses less digits than its factorization.

8294463621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722980 (or 722977 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 8294463621 is about 91073.9458956292. The cubic root of 8294463621 is about 2024.2435722539.

The spelling of 8294463621 in words is "eight billion, two hundred ninety-four million, four hundred sixty-three thousand, six hundred twenty-one".