8642137 has 8 divisors (see below), whose sum is σ = 10457856. Its totient is φ = 6971712.

The previous prime is 8642119. The next prime is 8642141. The reversal of 8642137 is 7312468.

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

It is a cyclic number.

It is not a de Polignac number, because 8642137 - 2¹⁹ = 8117849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8642099 and 8642108.

It is not an unprimeable number, because it can be changed into a prime (8642107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36193 + ... + 36430.

It is an arithmetic number, because the mean of its divisors is an integer number (1307232).

Almost surely, 2^8642137 is an apocalyptic number.

It is an amenable number.

8642137 is a deficient number, since it is larger than the sum of its proper divisors (1815719).

8642137 is a wasteful number, since it uses less digits than its factorization.

8642137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72647.

The product of its digits is 8064, while the sum is 31.

The square root of 8642137 is about 2939.7511799470. The cubic root of 8642137 is about 205.2140298853.

The spelling of 8642137 in words is "eight million, six hundred forty-two thousand, one hundred thirty-seven".