84702643 has 2 divisors, whose sum is σ = 84702644. Its totient is φ = 84702642.

The previous prime is 84702623. The next prime is 84702659. The reversal of 84702643 is 34620748.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84702643 is a prime.

It is equal to p_4927480 and since 84702643 and 4927480 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 84702599 and 84702608.

It is not a weakly prime, because it can be changed into another prime (84702613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42351321 + 42351322.

It is an arithmetic number, because the mean of its divisors is an integer number (42351322).

Almost surely, 2^84702643 is an apocalyptic number.

84702643 is a deficient number, since it is larger than the sum of its proper divisors (1).

84702643 is an equidigital number, since it uses as much as digits as its factorization.

84702643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 84702643 is about 9203.4038811735. The cubic root of 84702643 is about 439.1696512745.

The spelling of 84702643 in words is "eighty-four million, seven hundred two thousand, six hundred forty-three".