8739842 has 4 divisors (see below), whose sum is σ = 13109766. Its totient is φ = 4369920.

The previous prime is 8739827. The next prime is 8739851. The reversal of 8739842 is 2489378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8579041 + 160801 = 2929^2 + 401^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8739842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2184959 + ... + 2184962.

Almost surely, 2^8739842 is an apocalyptic number.

8739842 is a deficient number, since it is larger than the sum of its proper divisors (4369924).

8739842 is a wasteful number, since it uses less digits than its factorization.

8739842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369923.

The product of its digits is 96768, while the sum is 41.

The square root of 8739842 is about 2956.3223775495. The cubic root of 8739842 is about 205.9844931300.

The spelling of 8739842 in words is "eight million, seven hundred thirty-nine thousand, eight hundred forty-two".