84661386 has 8 divisors (see below), whose sum is σ = 169322784. Its totient is φ = 28220460.

The previous prime is 84661373. The next prime is 84661387. The reversal of 84661386 is 68316648.

It is a happy number.

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

84661386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (84661387) 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, 7055110 + ... + 7055121.

It is an arithmetic number, because the mean of its divisors is an integer number (21165348).

Almost surely, 2^84661386 is an apocalyptic number.

84661386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84661386 is a wasteful number, since it uses less digits than its factorization.

84661386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14110236.

The product of its digits is 165888, while the sum is 42.

The square root of 84661386 is about 9201.1622091994. The cubic root of 84661386 is about 439.0983360466.

The spelling of 84661386 in words is "eighty-four million, six hundred sixty-one thousand, three hundred eighty-six".