878640750 has 512 divisors, whose sum is σ = 3019161600. Its totient is φ = 186624000.

The previous prime is 878640743. The next prime is 878640761. The reversal of 878640750 is 57046878.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 878640696 and 878640705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 28343235 + ... + 28343265.

It is an arithmetic number, because the mean of its divisors is an integer number (5896800).

Almost surely, 2^878640750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878640750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509580800).

878640750 is an abundant number, since it is smaller than the sum of its proper divisors (2140520850).

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

878640750 is a wasteful number, since it uses less digits than its factorization.

878640750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 878640750 is about 29641.8749406983. The cubic root of 878640750 is about 957.7903279643.

The spelling of 878640750 in words is "eight hundred seventy-eight million, six hundred forty thousand, seven hundred fifty".