894728870 has 64 divisors (see below), whose sum is σ = 1961677440. Its totient is φ = 286820352.

The previous prime is 894728833. The next prime is 894728917. The reversal of 894728870 is 78827498.

It is a happy number.

It is a super-2 number, since 2×894728870² = 1601079501622953800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184436 + ... + 189224.

It is an arithmetic number, because the mean of its divisors is an integer number (30651210).

Almost surely, 2^894728870 is an apocalyptic number.

894728870 is an abundant number, since it is smaller than the sum of its proper divisors (1066948570).

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

894728870 is a wasteful number, since it uses less digits than its factorization.

894728870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The square root of 894728870 is about 29912.0188218716. The cubic root of 894728870 is about 963.6007964396.

It can be divided in two parts, 894728 and 870, that added together give a palindrome (895598).

The spelling of 894728870 in words is "eight hundred ninety-four million, seven hundred twenty-eight thousand, eight hundred seventy".