1009878 has 16 divisors (see below), whose sum is σ = 2074800. Its totient is φ = 327456.

The previous prime is 1009873. The next prime is 1009901. The reversal of 1009878 is 8789001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009873) 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, 2053 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (129675).

2^1009878 is an apocalyptic number.

1009878 is an abundant number, since it is smaller than the sum of its proper divisors (1064922).

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

1009878 is a wasteful number, since it uses less digits than its factorization.

1009878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1009878 is about 1004.9268630104. The cubic root of 1009878 is about 100.3281884120.

The spelling of 1009878 in words is "one million, nine thousand, eight hundred seventy-eight".