870548406 has 96 divisors (see below), whose sum is σ = 2199513600. Its totient is φ = 229503456.

The previous prime is 870548389. The next prime is 870548407. The reversal of 870548406 is 604845078.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870548407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346551 + ... + 349053.

It is an arithmetic number, because the mean of its divisors is an integer number (22911600).

Almost surely, 2^870548406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870548406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099756800).

870548406 is an abundant number, since it is smaller than the sum of its proper divisors (1328965194).

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

870548406 is a wasteful number, since it uses less digits than its factorization.

870548406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555 (or 2528 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 870548406 is about 29505.0572953180. The cubic root of 870548406 is about 954.8408151843.

The spelling of 870548406 in words is "eight hundred seventy million, five hundred forty-eight thousand, four hundred six".