8479531 has 2 divisors, whose sum is σ = 8479532. Its totient is φ = 8479530.

The previous prime is 8479511. The next prime is 8479547. The reversal of 8479531 is 1359748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8479531 - 2⁷ = 8479403 is a prime.

It is a super-2 number, since 2×8479531² = 143804891959922, which contains 22 as substring.

8479531 is a lucky number.

It is equal to p₅₆₉₈₁₈ and since 8479531 and 569818 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (8479511) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4239765 + 4239766.

It is an arithmetic number, because the mean of its divisors is an integer number (4239766).

Almost surely, 2^8479531 is an apocalyptic number.

8479531 is a deficient number, since it is larger than the sum of its proper divisors (1).

8479531 is an equidigital number, since it uses as much as digits as its factorization.

8479531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 8479531 is about 2911.9634269681. The cubic root of 8479531 is about 203.9188049936.

The spelling of 8479531 in words is "eight million, four hundred seventy-nine thousand, five hundred thirty-one".