84616691 has 2 divisors, whose sum is σ = 84616692. Its totient is φ = 84616690.

The previous prime is 84616657. The next prime is 84616711. The reversal of 84616691 is 19661648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84616691 - 2⁶ = 84616627 is a prime.

It is not a weakly prime, because it can be changed into another prime (84615691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42308345 + 42308346.

It is an arithmetic number, because the mean of its divisors is an integer number (42308346).

Almost surely, 2^84616691 is an apocalyptic number.

84616691 is a deficient number, since it is larger than the sum of its proper divisors (1).

84616691 is an equidigital number, since it uses as much as digits as its factorization.

84616691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 84616691 is about 9198.7331192942. The cubic root of 84616691 is about 439.0210518769.

The spelling of 84616691 in words is "eighty-four million, six hundred sixteen thousand, six hundred ninety-one".