84050831 has 2 divisors, whose sum is σ = 84050832. Its totient is φ = 84050830.

The previous prime is 84050819. The next prime is 84050849. The reversal of 84050831 is 13805048.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84050831 is a prime.

It is a super-2 number, since 2×84050831² = 14129084383581122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84050794 and 84050803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84050891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42025415 + 42025416.

It is an arithmetic number, because the mean of its divisors is an integer number (42025416).

Almost surely, 2^84050831 is an apocalyptic number.

84050831 is a deficient number, since it is larger than the sum of its proper divisors (1).

84050831 is an equidigital number, since it uses as much as digits as its factorization.

84050831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 84050831 is about 9167.9240289173. The cubic root of 84050831 is about 438.0402355954.

Adding to 84050831 its reverse (13805048), we get a palindrome (97855879).

The spelling of 84050831 in words is "eighty-four million, fifty thousand, eight hundred thirty-one".