899487 has 12 divisors (see below), whose sum is σ = 1375920. Its totient is φ = 564288.

The previous prime is 899477. The next prime is 899491. The reversal of 899487 is 784998.

It is a de Polignac number, because none of the positive numbers 2^k-899487 is a prime.

899487 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 899487.

It is not an unprimeable number, because it can be changed into a prime (899447) 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, 2787 + ... + 3092.

It is an arithmetic number, because the mean of its divisors is an integer number (114660).

2⁸⁹⁹⁴⁸⁷ is an apocalyptic number.

899487 is a deficient number, since it is larger than the sum of its proper divisors (476433).

899487 is a wasteful number, since it uses less digits than its factorization.

899487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902 (or 5899 counting only the distinct ones).

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

The square root of 899487 is about 948.4128847712. The cubic root of 899487 is about 96.5305906757.

The spelling of 899487 in words is "eight hundred ninety-nine thousand, four hundred eighty-seven".