84040319 has 4 divisors (see below), whose sum is σ = 91680360. Its totient is φ = 76400280.

The previous prime is 84040303. The next prime is 84040331. The reversal of 84040319 is 91304048.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 84040319 - 2⁴ = 84040303 is a prime.

It is a super-2 number, since 2×84040319² = 14125550435243522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84040291 and 84040300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84040219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3820004 + ... + 3820025.

It is an arithmetic number, because the mean of its divisors is an integer number (22920090).

Almost surely, 2^84040319 is an apocalyptic number.

84040319 is a deficient number, since it is larger than the sum of its proper divisors (7640041).

84040319 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 84040319 = (43490810)₁₁.

84040319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640040.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 84040319 is about 9167.3507078108. The cubic root of 84040319 is about 438.0219733491.

The spelling of 84040319 in words is "eighty-four million, forty thousand, three hundred nineteen".