84528949 has 2 divisors, whose sum is σ = 84528950. Its totient is φ = 84528948.

The previous prime is 84528937. The next prime is 84528953. The reversal of 84528949 is 94982548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72846225 + 11682724 = 8535^2 + 3418^2 .

It is a cyclic number.

It is not a de Polignac number, because 84528949 - 2¹¹ = 84526901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84528919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42264474 + 42264475.

It is an arithmetic number, because the mean of its divisors is an integer number (42264475).

Almost surely, 2^84528949 is an apocalyptic number.

It is an amenable number.

84528949 is a deficient number, since it is larger than the sum of its proper divisors (1).

84528949 is an equidigital number, since it uses as much as digits as its factorization.

84528949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 49.

The square root of 84528949 is about 9193.9626386015. The cubic root of 84528949 is about 438.8692539798.

The spelling of 84528949 in words is "eighty-four million, five hundred twenty-eight thousand, nine hundred forty-nine".