9877398 has 32 divisors (see below), whose sum is σ = 20412000. Its totient is φ = 3184896.

The previous prime is 9877393. The next prime is 9877421. The reversal of 9877398 is 8937789.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9877398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9877393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28128 + ... + 28476.

It is an arithmetic number, because the mean of its divisors is an integer number (637875).

Almost surely, 2^9877398 is an apocalyptic number.

9877398 is an abundant number, since it is smaller than the sum of its proper divisors (10534602).

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

9877398 is a wasteful number, since it uses less digits than its factorization.

9877398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 762048, while the sum is 51.

The square root of 9877398 is about 3142.8327986070. The cubic root of 9877398 is about 214.5593860814.

It can be divided in two parts, 987 and 7398, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 9877398 in words is "nine million, eight hundred seventy-seven thousand, three hundred ninety-eight".