84798031 has 2 divisors, whose sum is σ = 84798032. Its totient is φ = 84798030.

The previous prime is 84798017. The next prime is 84798053. The reversal of 84798031 is 13089748.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84798031 is a prime.

It is a super-2 number, since 2×84798031² = 14381412122953922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84798071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42399015 + 42399016.

It is an arithmetic number, because the mean of its divisors is an integer number (42399016).

Almost surely, 2^84798031 is an apocalyptic number.

84798031 is a deficient number, since it is larger than the sum of its proper divisors (1).

84798031 is an equidigital number, since it uses as much as digits as its factorization.

84798031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 84798031 is about 9208.5846360882. The cubic root of 84798031 is about 439.3344466010.

The spelling of 84798031 in words is "eighty-four million, seven hundred ninety-eight thousand, thirty-one".