84519939 has 8 divisors (see below), whose sum is σ = 128792320. Its totient is φ = 48297096.

The previous prime is 84519913. The next prime is 84519977. The reversal of 84519939 is 93991548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84519939 - 2⁵ = 84519907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84519989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012359 + ... + 2012400.

It is an arithmetic number, because the mean of its divisors is an integer number (16099040).

Almost surely, 2^84519939 is an apocalyptic number.

84519939 is a deficient number, since it is larger than the sum of its proper divisors (44272381).

84519939 is a wasteful number, since it uses less digits than its factorization.

84519939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024769.

The product of its digits is 349920, while the sum is 48.

The square root of 84519939 is about 9193.4726300784. The cubic root of 84519939 is about 438.8536602985.

It can be divided in two parts, 84519 and 939, that added together give a palindrome (85458).

The spelling of 84519939 in words is "eighty-four million, five hundred nineteen thousand, nine hundred thirty-nine".