9878774 has 4 divisors (see below), whose sum is σ = 14818164. Its totient is φ = 4939386.

The previous prime is 9878773. The next prime is 9878797. The reversal of 9878774 is 4778789.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2469692 + ... + 2469695.

It is an arithmetic number, because the mean of its divisors is an integer number (3704541).

Almost surely, 2^9878774 is an apocalyptic number.

9878774 is a deficient number, since it is larger than the sum of its proper divisors (4939390).

9878774 is a wasteful number, since it uses less digits than its factorization.

9878774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4939389.

The product of its digits is 790272, while the sum is 50.

The square root of 9878774 is about 3143.0517017701. The cubic root of 9878774 is about 214.5693488944.

The spelling of 9878774 in words is "nine million, eight hundred seventy-eight thousand, seven hundred seventy-four".