8254973421 has 12 divisors (see below), whose sum is σ = 11961949948. Its totient is φ = 5485731264.

The previous prime is 8254973417. The next prime is 8254973429. The reversal of 8254973421 is 1243794528.

8254973421 is a `hidden beast` number, since 82 + 549 + 7 + 3 + 4 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 249197796 + 8005775625 = 15786^2 + 89475^2 .

It is not a de Polignac number, because 8254973421 - 2² = 8254973417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8254973429) 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, 1462390 + ... + 1468023.

Almost surely, 2^8254973421 is an apocalyptic number.

It is an amenable number.

8254973421 is a deficient number, since it is larger than the sum of its proper divisors (3706976527).

8254973421 is a wasteful number, since it uses less digits than its factorization.

8254973421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930732 (or 2930729 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 8254973421 is about 90856.8842796186. The cubic root of 8254973421 is about 2021.0259648679.

The spelling of 8254973421 in words is "eight billion, two hundred fifty-four million, nine hundred seventy-three thousand, four hundred twenty-one".