899847 has 12 divisors (see below), whose sum is σ = 1399944. Its totient is φ = 553680.

The previous prime is 899831. The next prime is 899849. The reversal of 899847 is 748998.

It is not a de Polignac number, because 899847 - 2⁴ = 899831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3729 + ... + 3962.

It is an arithmetic number, because the mean of its divisors is an integer number (116662).

2⁸⁹⁹⁸⁴⁷ is an apocalyptic number.

899847 is a deficient number, since it is larger than the sum of its proper divisors (500097).

899847 is a wasteful number, since it uses less digits than its factorization.

899847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710 (or 7707 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 899847 is about 948.6026565428. The cubic root of 899847 is about 96.5434670440.

It can be divided in two parts, 8998 and 47, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 899847 in words is "eight hundred ninety-nine thousand, eight hundred forty-seven".