896661805 has 8 divisors (see below), whose sum is σ = 1158763032. Its totient is φ = 662150208.

The previous prime is 896661793. The next prime is 896661809. The reversal of 896661805 is 508166698.

It can be written as a sum of positive squares in 4 ways, for example, as 105308644 + 791353161 = 10262^2 + 28131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-896661805 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 (896661809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6897334 + ... + 6897463.

It is an arithmetic number, because the mean of its divisors is an integer number (144845379).

Almost surely, 2^896661805 is an apocalyptic number.

It is an amenable number.

896661805 is a deficient number, since it is larger than the sum of its proper divisors (262101227).

896661805 is a wasteful number, since it uses less digits than its factorization.

896661805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13794815.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 896661805 is about 29944.3117302769. The cubic root of 896661805 is about 964.2942050229.

The spelling of 896661805 in words is "eight hundred ninety-six million, six hundred sixty-one thousand, eight hundred five".