8639954 has 8 divisors (see below), whose sum is σ = 13204620. Its totient is φ = 4238416.

The previous prime is 8639951. The next prime is 8639977. The reversal of 8639954 is 4599368.

8639954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7991929 + 648025 = 2827^2 + 805^2 .

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

It is a d-powerful number, because it can be written as 8 + 6⁶ + 3¹³ + 9³ + 9⁷ + 5⁹ + 4⁹ .

It is not an unprimeable number, because it can be changed into a prime (8639951) 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, 40649 + ... + 40860.

Almost surely, 2^8639954 is an apocalyptic number.

8639954 is a deficient number, since it is larger than the sum of its proper divisors (4564666).

8639954 is a wasteful number, since it uses less digits than its factorization.

8639954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81564.

The product of its digits is 233280, while the sum is 44.

The square root of 8639954 is about 2939.3798665705. The cubic root of 8639954 is about 205.1967494390.

The spelling of 8639954 in words is "eight million, six hundred thirty-nine thousand, nine hundred fifty-four".