901084878 has 64 divisors (see below), whose sum is σ = 2032024320. Its totient is φ = 295953696.

The previous prime is 901084871. The next prime is 901084889. The reversal of 901084878 is 878480109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901084871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1600225 + ... + 1600787.

It is an arithmetic number, because the mean of its divisors is an integer number (31750380).

Almost surely, 2^901084878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 901084878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016012160).

901084878 is an abundant number, since it is smaller than the sum of its proper divisors (1130939442).

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

901084878 is a wasteful number, since it uses less digits than its factorization.

901084878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 901084878 is about 30018.0758543915. The cubic root of 901084878 is about 965.8771689044.

The spelling of 901084878 in words is "nine hundred one million, eighty-four thousand, eight hundred seventy-eight".