84468749 has 2 divisors, whose sum is σ = 84468750. Its totient is φ = 84468748.

The previous prime is 84468739. The next prime is 84468763. The reversal of 84468749 is 94786448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67535524 + 16933225 = 8218^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 84468749 - 2¹⁶ = 84403213 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84468697 and 84468706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84468739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42234374 + 42234375.

It is an arithmetic number, because the mean of its divisors is an integer number (42234375).

Almost surely, 2^84468749 is an apocalyptic number.

It is an amenable number.

84468749 is a deficient number, since it is larger than the sum of its proper divisors (1).

84468749 is an equidigital number, since it uses as much as digits as its factorization.

84468749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 50.

The square root of 84468749 is about 9190.6881679230. The cubic root of 84468749 is about 438.7650443025.

The spelling of 84468749 in words is "eighty-four million, four hundred sixty-eight thousand, seven hundred forty-nine".