86572477 has 2 divisors, whose sum is σ = 86572478. Its totient is φ = 86572476.

The previous prime is 86572463. The next prime is 86572513. The reversal of 86572477 is 77427568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72352036 + 14220441 = 8506^2 + 3771^2 .

It is a cyclic number.

It is not a de Polignac number, because 86572477 - 2¹⁵ = 86539709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86572457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43286238 + 43286239.

It is an arithmetic number, because the mean of its divisors is an integer number (43286239).

Almost surely, 2^86572477 is an apocalyptic number.

It is an amenable number.

86572477 is a deficient number, since it is larger than the sum of its proper divisors (1).

86572477 is an equidigital number, since it uses as much as digits as its factorization.

86572477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 46.

The square root of 86572477 is about 9304.4331906893. The cubic root of 86572477 is about 442.3777559266.

The spelling of 86572477 in words is "eighty-six million, five hundred seventy-two thousand, four hundred seventy-seven".