8712420 has 24 divisors (see below), whose sum is σ = 24394944. Its totient is φ = 2323296.

The previous prime is 8712397. The next prime is 8712421. The reversal of 8712420 is 242178.

It is not an unprimeable number, because it can be changed into a prime (8712421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72544 + ... + 72663.

It is an arithmetic number, because the mean of its divisors is an integer number (1016456).

Almost surely, 2^8712420 is an apocalyptic number.

It is an amenable number.

8712420 is an abundant number, since it is smaller than the sum of its proper divisors (15682524).

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

8712420 is a wasteful number, since it uses less digits than its factorization.

8712420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145219 (or 145217 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 8712420 is about 2951.6808770597. The cubic root of 8712420 is about 205.7688361175.

Adding to 8712420 its reverse (242178), we get a palindrome (8954598).

The spelling of 8712420 in words is "eight million, seven hundred twelve thousand, four hundred twenty".