84499019 has 6 divisors (see below), whose sum is σ = 92879220. Its totient is φ = 76817180.

The previous prime is 84499001. The next prime is 84499031. The reversal of 84499019 is 91099448.

It is a de Polignac number, because none of the positive numbers 2^k-84499019 is a prime.

It is a super-2 number, since 2×84499019² = 14280168423924722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84499039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349049 + ... + 349290.

It is an arithmetic number, because the mean of its divisors is an integer number (15479870).

Almost surely, 2^84499019 is an apocalyptic number.

84499019 is a deficient number, since it is larger than the sum of its proper divisors (8380201).

84499019 is a wasteful number, since it uses less digits than its factorization.

84499019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698361 (or 698350 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 84499019 is about 9192.3347959047. The cubic root of 84499019 is about 438.8174496077.

The spelling of 84499019 in words is "eighty-four million, four hundred ninety-nine thousand, nineteen".