83840419 has 8 divisors (see below), whose sum is σ = 90387360. Its totient is φ = 77307456.

The previous prime is 83840401. The next prime is 83840437. The reversal of 83840419 is 91404838.

It is an interprime number because it is at equal distance from previous prime (83840401) and next prime (83840437).

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

It is a cyclic number.

It is not a de Polignac number, because 83840419 - 2⁵ = 83840387 is a prime.

It is a super-2 number, since 2×83840419² = 14058431716191122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83840489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11322 + ... + 17200.

It is an arithmetic number, because the mean of its divisors is an integer number (11298420).

Almost surely, 2^83840419 is an apocalyptic number.

83840419 is a deficient number, since it is larger than the sum of its proper divisors (6546941).

83840419 is a wasteful number, since it uses less digits than its factorization.

83840419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 83840419 is about 9156.4413939041. The cubic root of 83840419 is about 437.6744016523.

The spelling of 83840419 in words is "eighty-three million, eight hundred forty thousand, four hundred nineteen".