84690417 has 8 divisors (see below), whose sum is σ = 129052096. Its totient is φ = 48394512.

The previous prime is 84690407. The next prime is 84690451. The reversal of 84690417 is 71409648.

It is a happy number.

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

It is not a de Polignac number, because 84690417 - 2⁷ = 84690289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84690407) 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, 2016418 + ... + 2016459.

It is an arithmetic number, because the mean of its divisors is an integer number (16131512).

Almost surely, 2^84690417 is an apocalyptic number.

It is an amenable number.

84690417 is a deficient number, since it is larger than the sum of its proper divisors (44361679).

84690417 is a wasteful number, since it uses less digits than its factorization.

84690417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032887.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 84690417 is about 9202.7396464314. The cubic root of 84690417 is about 439.1485203065.

The spelling of 84690417 in words is "eighty-four million, six hundred ninety thousand, four hundred seventeen".