84844261 has 2 divisors, whose sum is σ = 84844262. Its totient is φ = 84844260.

The previous prime is 84844231. The next prime is 84844321. The reversal of 84844261 is 16244848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82901025 + 1943236 = 9105^2 + 1394^2 .

It is a cyclic number.

It is not a de Polignac number, because 84844261 - 2¹⁹ = 84319973 is a prime.

It is a super-2 number, since 2×84844261² = 14397097249272242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84844261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84844231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42422130 + 42422131.

It is an arithmetic number, because the mean of its divisors is an integer number (42422131).

Almost surely, 2^84844261 is an apocalyptic number.

It is an amenable number.

84844261 is a deficient number, since it is larger than the sum of its proper divisors (1).

84844261 is an equidigital number, since it uses as much as digits as its factorization.

84844261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 37.

The square root of 84844261 is about 9211.0944518010. The cubic root of 84844261 is about 439.4142705522.

The spelling of 84844261 in words is "eighty-four million, eight hundred forty-four thousand, two hundred sixty-one".