84879629 has 2 divisors, whose sum is σ = 84879630. Its totient is φ = 84879628.

The previous prime is 84879601. The next prime is 84879649. The reversal of 84879629 is 92697848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46104100 + 38775529 = 6790^2 + 6227^2 .

It is a cyclic number.

It is not a de Polignac number, because 84879629 - 2⁸ = 84879373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84879649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42439814 + 42439815.

It is an arithmetic number, because the mean of its divisors is an integer number (42439815).

Almost surely, 2^84879629 is an apocalyptic number.

It is an amenable number.

84879629 is a deficient number, since it is larger than the sum of its proper divisors (1).

84879629 is an equidigital number, since it uses as much as digits as its factorization.

84879629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The square root of 84879629 is about 9213.0141104852. The cubic root of 84879629 is about 439.4753198392.

The spelling of 84879629 in words is "eighty-four million, eight hundred seventy-nine thousand, six hundred twenty-nine".