9877420 has 36 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 3386208.

The previous prime is 9877393. The next prime is 9877421. The reversal of 9877420 is 247789.

It is a happy number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 9877420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9877421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4060 + ... + 6019.

It is an arithmetic number, because the mean of its divisors is an integer number (670320).

Almost surely, 2^9877420 is an apocalyptic number.

It is an amenable number.

9877420 is an abundant number, since it is smaller than the sum of its proper divisors (14254100).

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

9877420 is a wasteful number, since it uses less digits than its factorization.

9877420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102 (or 10093 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 9877420 is about 3142.8362986322. The cubic root of 9877420 is about 214.5595453778.

The spelling of 9877420 in words is "nine million, eight hundred seventy-seven thousand, four hundred twenty".