84644386 has 8 divisors (see below), whose sum is σ = 128131740. Its totient is φ = 41933808.

The previous prime is 84644369. The next prime is 84644401. The reversal of 84644386 is 68344648.

It can be written as a sum of positive squares in 2 ways, for example, as 84180625 + 463761 = 9175^2 + 681^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193921 + ... + 194356.

Almost surely, 2^84644386 is an apocalyptic number.

84644386 is a deficient number, since it is larger than the sum of its proper divisors (43487354).

84644386 is a wasteful number, since it uses less digits than its factorization.

84644386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388388.

The product of its digits is 442368, while the sum is 43.

The square root of 84644386 is about 9200.2383664773. The cubic root of 84644386 is about 439.0689437748.

The spelling of 84644386 in words is "eighty-four million, six hundred forty-four thousand, three hundred eighty-six".