84420419 has 8 divisors (see below), whose sum is σ = 93273120. Its totient is φ = 75999616.

The previous prime is 84420389. The next prime is 84420431. The reversal of 84420419 is 91402448.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84420419 is a prime.

It is a super-2 number, since 2×84420419² = 14253614288271122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84420449) 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, 107564 + ... + 108345.

It is an arithmetic number, because the mean of its divisors is an integer number (11659140).

Almost surely, 2^84420419 is an apocalyptic number.

84420419 is a deficient number, since it is larger than the sum of its proper divisors (8852701).

84420419 is a wasteful number, since it uses less digits than its factorization.

84420419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215949.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 84420419 is about 9188.0585000314. The cubic root of 84420419 is about 438.6813464439.

The spelling of 84420419 in words is "eighty-four million, four hundred twenty thousand, four hundred nineteen".