86449453 has 2 divisors, whose sum is σ = 86449454. Its totient is φ = 86449452.

The previous prime is 86449439. The next prime is 86449457. The reversal of 86449453 is 35494468.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85340644 + 1108809 = 9238^2 + 1053^2 .

It is a cyclic number.

It is not a de Polignac number, because 86449453 - 2¹⁷ = 86318381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86449457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43224726 + 43224727.

It is an arithmetic number, because the mean of its divisors is an integer number (43224727).

Almost surely, 2^86449453 is an apocalyptic number.

It is an amenable number.

86449453 is a deficient number, since it is larger than the sum of its proper divisors (1).

86449453 is an equidigital number, since it uses as much as digits as its factorization.

86449453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 43.

The square root of 86449453 is about 9297.8197982108. The cubic root of 86449453 is about 442.1681093096.

The spelling of 86449453 in words is "eighty-six million, four hundred forty-nine thousand, four hundred fifty-three".