86549479 has 2 divisors, whose sum is σ = 86549480. Its totient is φ = 86549478.

The previous prime is 86549467. The next prime is 86549509. The reversal of 86549479 is 97494568.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86549479 - 2¹¹ = 86547431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86549429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43274739 + 43274740.

It is an arithmetic number, because the mean of its divisors is an integer number (43274740).

Almost surely, 2^86549479 is an apocalyptic number.

86549479 is a deficient number, since it is larger than the sum of its proper divisors (1).

86549479 is an equidigital number, since it uses as much as digits as its factorization.

86549479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 86549479 is about 9303.1972461085. The cubic root of 86549479 is about 442.3385798704.

The spelling of 86549479 in words is "eighty-six million, five hundred forty-nine thousand, four hundred seventy-nine".