84988619 has 2 divisors, whose sum is σ = 84988620. Its totient is φ = 84988618.

The previous prime is 84988591. The next prime is 84988637. The reversal of 84988619 is 91688948.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84988619 is a prime.

It is a super-2 number, since 2×84988619² = 14446130719054322, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 6.

It is not a weakly prime, because it can be changed into another prime (84988669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42494309 + 42494310.

It is an arithmetic number, because the mean of its divisors is an integer number (42494310).

Almost surely, 2^84988619 is an apocalyptic number.

84988619 is a deficient number, since it is larger than the sum of its proper divisors (1).

84988619 is an equidigital number, since it uses as much as digits as its factorization.

84988619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 53.

The square root of 84988619 is about 9218.9272152458. The cubic root of 84988619 is about 439.6633426856.

The spelling of 84988619 in words is "eighty-four million, nine hundred eighty-eight thousand, six hundred nineteen".