894704640 has 176 divisors, whose sum is σ = 2955540480. Its totient is φ = 230768640.

The previous prime is 894704633. The next prime is 894704647. The reversal of 894704640 is 46407498.

It is an interprime number because it is at equal distance from previous prime (894704633) and next prime (894704647).

It is a junction number, because it is equal to n+sod(n) for n = 894704592 and 894704601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894704647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475221 + ... + 477099.

Almost surely, 2^894704640 is an apocalyptic number.

894704640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 894704640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477770240).

894704640 is an abundant number, since it is smaller than the sum of its proper divisors (2060835840).

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

894704640 is a wasteful number, since it uses less digits than its factorization.

894704640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 894704640 is about 29911.6137979882. The cubic root of 894704640 is about 963.5920979915.

The spelling of 894704640 in words is "eight hundred ninety-four million, seven hundred four thousand, six hundred forty".