894340861 has 4 divisors (see below), whose sum is σ = 897904224. Its totient is φ = 890777500.

The previous prime is 894340859. The next prime is 894340877. The reversal of 894340861 is 168043498.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 894340861 - 2¹ = 894340859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894340841) 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 3 ways as a sum of consecutive naturals, for example, 1781305 + ... + 1781806.

It is an arithmetic number, because the mean of its divisors is an integer number (224476056).

Almost surely, 2^894340861 is an apocalyptic number.

It is an amenable number.

894340861 is a deficient number, since it is larger than the sum of its proper divisors (3563363).

894340861 is a wasteful number, since it uses less digits than its factorization.

894340861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563362.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 894340861 is about 29905.5322808339. The cubic root of 894340861 is about 963.4614842772.

The spelling of 894340861 in words is "eight hundred ninety-four million, three hundred forty thousand, eight hundred sixty-one".