8739642 has 16 divisors (see below), whose sum is σ = 17906112. Its totient is φ = 2842080.

The previous prime is 8739637. The next prime is 8739667. The reversal of 8739642 is 2469378.

8739642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8739642.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17518 + ... + 18009.

It is an arithmetic number, because the mean of its divisors is an integer number (1119132).

Almost surely, 2^8739642 is an apocalyptic number.

8739642 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

8739642 is an abundant number, since it is smaller than the sum of its proper divisors (9166470).

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

8739642 is a wasteful number, since it uses less digits than its factorization.

8739642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35573.

The product of its digits is 72576, while the sum is 39.

The square root of 8739642 is about 2956.2885515457. The cubic root of 8739642 is about 205.9829218883.

The spelling of 8739642 in words is "eight million, seven hundred thirty-nine thousand, six hundred forty-two".