84286331 has 2 divisors, whose sum is σ = 84286332. Its totient is φ = 84286330.

The previous prime is 84286291. The next prime is 84286339. The reversal of 84286331 is 13368248.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84286331 is a prime.

It is a super-2 number, since 2×84286331² = 14208371186883122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84286291 and 84286300.

It is not a weakly prime, because it can be changed into another prime (84286339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42143165 + 42143166.

It is an arithmetic number, because the mean of its divisors is an integer number (42143166).

Almost surely, 2^84286331 is an apocalyptic number.

84286331 is a deficient number, since it is larger than the sum of its proper divisors (1).

84286331 is an equidigital number, since it uses as much as digits as its factorization.

84286331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 84286331 is about 9180.7587377079. The cubic root of 84286331 is about 438.4489655596.

The spelling of 84286331 in words is "eighty-four million, two hundred eighty-six thousand, three hundred thirty-one".