8472281 has 4 divisors (see below), whose sum is σ = 8678964. Its totient is φ = 8265600.

The previous prime is 8472259. The next prime is 8472293. The reversal of 8472281 is 1822748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 292681 + 8179600 = 541^2 + 2860^2 .

It is not a de Polignac number, because 8472281 - 2¹⁴ = 8455897 is a prime.

It is a super-2 number, since 2×8472281² = 143559090685922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8472221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103280 + ... + 103361.

It is an arithmetic number, because the mean of its divisors is an integer number (2169741).

Almost surely, 2^8472281 is an apocalyptic number.

It is an amenable number.

8472281 is a deficient number, since it is larger than the sum of its proper divisors (206683).

8472281 is a wasteful number, since it uses less digits than its factorization.

8472281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206682.

The product of its digits is 7168, while the sum is 32.

The square root of 8472281 is about 2910.7182962286. The cubic root of 8472281 is about 203.8606715551.

The spelling of 8472281 in words is "eight million, four hundred seventy-two thousand, two hundred eighty-one".