8700842 has 4 divisors (see below), whose sum is σ = 13051266. Its totient is φ = 4350420.

The previous prime is 8700833. The next prime is 8700869. The reversal of 8700842 is 2480078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2480078 = 2 ⋅1240039.

It can be written as a sum of positive squares in only one way, i.e., 8579041 + 121801 = 2929^2 + 349^2 .

It is a super-3 number, since 3×8700842³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175209 + ... + 2175212.

Almost surely, 2^8700842 is an apocalyptic number.

8700842 is a deficient number, since it is larger than the sum of its proper divisors (4350424).

8700842 is a wasteful number, since it uses less digits than its factorization.

8700842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350423.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 8700842 is about 2949.7189696647. The cubic root of 8700842 is about 205.6776464637.

The spelling of 8700842 in words is "eight million, seven hundred thousand, eight hundred forty-two".