86674477 has 2 divisors, whose sum is σ = 86674478. Its totient is φ = 86674476.

The previous prime is 86674429. The next prime is 86674487. The reversal of 86674477 is 77447668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65707236 + 20967241 = 8106^2 + 4579^2 .

It is a cyclic number.

It is not a de Polignac number, because 86674477 - 2¹⁹ = 86150189 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86674477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86674487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43337238 + 43337239.

It is an arithmetic number, because the mean of its divisors is an integer number (43337239).

Almost surely, 2^86674477 is an apocalyptic number.

It is an amenable number.

86674477 is a deficient number, since it is larger than the sum of its proper divisors (1).

86674477 is an equidigital number, since it uses as much as digits as its factorization.

86674477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 49.

The square root of 86674477 is about 9309.9128352525. The cubic root of 86674477 is about 442.5514247533.

The spelling of 86674477 in words is "eighty-six million, six hundred seventy-four thousand, four hundred seventy-seven".