84683129 has 2 divisors, whose sum is σ = 84683130. Its totient is φ = 84683128.

The previous prime is 84683119. The next prime is 84683149. The reversal of 84683129 is 92138648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78357904 + 6325225 = 8852^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 84683129 - 2¹² = 84679033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (84683119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42341564 + 42341565.

It is an arithmetic number, because the mean of its divisors is an integer number (42341565).

Almost surely, 2^84683129 is an apocalyptic number.

It is an amenable number.

84683129 is a deficient number, since it is larger than the sum of its proper divisors (1).

84683129 is an equidigital number, since it uses as much as digits as its factorization.

84683129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 84683129 is about 9202.3436688704. The cubic root of 84683129 is about 439.1359230283.

The spelling of 84683129 in words is "eighty-four million, six hundred eighty-three thousand, one hundred twenty-nine".