894296021 has 4 divisors (see below), whose sum is σ = 899992332. Its totient is φ = 888599712.

The previous prime is 894296017. The next prime is 894296093. The reversal of 894296021 is 120692498.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77193796 + 817102225 = 8786^2 + 28585^2 .

It is a cyclic number.

It is not a de Polignac number, because 894296021 - 2² = 894296017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 894296021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894296621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2847920 + ... + 2848233.

It is an arithmetic number, because the mean of its divisors is an integer number (224998083).

Almost surely, 2^894296021 is an apocalyptic number.

It is an amenable number.

894296021 is a deficient number, since it is larger than the sum of its proper divisors (5696311).

894296021 is a wasteful number, since it uses less digits than its factorization.

894296021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696310.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 894296021 is about 29904.7825773738. The cubic root of 894296021 is about 963.4453821634.

The spelling of 894296021 in words is "eight hundred ninety-four million, two hundred ninety-six thousand, twenty-one".