84528919 has 2 divisors, whose sum is σ = 84528920. Its totient is φ = 84528918.

The previous prime is 84528901. The next prime is 84528923. The reversal of 84528919 is 91982548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84528919 - 2⁷ = 84528791 is a prime.

It is a super-2 number, since 2×84528919² = 14290276294617122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84528949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42264459 + 42264460.

It is an arithmetic number, because the mean of its divisors is an integer number (42264460).

Almost surely, 2^84528919 is an apocalyptic number.

84528919 is a deficient number, since it is larger than the sum of its proper divisors (1).

84528919 is an equidigital number, since it uses as much as digits as its factorization.

84528919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 46.

The square root of 84528919 is about 9193.9610070959. The cubic root of 84528919 is about 438.8692020604.

It can be divided in two parts, 8452 and 8919, that added together give a palindrome (17371).

The spelling of 84528919 in words is "eighty-four million, five hundred twenty-eight thousand, nine hundred nineteen".