84449441 has 2 divisors, whose sum is σ = 84449442. Its totient is φ = 84449440.

The previous prime is 84449423. The next prime is 84449447. The reversal of 84449441 is 14494448.

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., 47665216 + 36784225 = 6904^2 + 6065^2 .

It is a cyclic number.

It is not a de Polignac number, because 84449441 - 2²² = 80255137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84449395 and 84449404.

It is not a weakly prime, because it can be changed into another prime (84449447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42224720 + 42224721.

It is an arithmetic number, because the mean of its divisors is an integer number (42224721).

Almost surely, 2^84449441 is an apocalyptic number.

It is an amenable number.

84449441 is a deficient number, since it is larger than the sum of its proper divisors (1).

84449441 is an equidigital number, since it uses as much as digits as its factorization.

84449441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 38.

The square root of 84449441 is about 9189.6376968845. The cubic root of 84449441 is about 438.7316105528.

The spelling of 84449441 in words is "eighty-four million, four hundred forty-nine thousand, four hundred forty-one".