84328931 has 2 divisors, whose sum is σ = 84328932. Its totient is φ = 84328930.

The previous prime is 84328927. The next prime is 84328961. The reversal of 84328931 is 13982348.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84328931 - 2² = 84328927 is a prime.

It is a super-2 number, since 2×84328931² = 14222737207205522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84328961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42164465 + 42164466.

It is an arithmetic number, because the mean of its divisors is an integer number (42164466).

Almost surely, 2^84328931 is an apocalyptic number.

84328931 is a deficient number, since it is larger than the sum of its proper divisors (1).

84328931 is an equidigital number, since it uses as much as digits as its factorization.

84328931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 84328931 is about 9183.0785143110. The cubic root of 84328931 is about 438.5228200816.

The spelling of 84328931 in words is "eighty-four million, three hundred twenty-eight thousand, nine hundred thirty-one".