899478 has 16 divisors (see below), whose sum is σ = 1998960. Its totient is φ = 299808.

The previous prime is 899477. The next prime is 899491. The reversal of 899478 is 874998.

It is a nialpdrome in base 16.

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 899478.

It is not an unprimeable number, because it can be changed into a prime (899473) 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, 8275 + ... + 8382.

It is an arithmetic number, because the mean of its divisors is an integer number (124935).

2⁸⁹⁹⁴⁷⁸ is an apocalyptic number.

899478 is an abundant number, since it is smaller than the sum of its proper divisors (1099482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

899478 is a wasteful number, since it uses less digits than its factorization.

899478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16668 (or 16662 counting only the distinct ones).

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

The square root of 899478 is about 948.4081399904. The cubic root of 899478 is about 96.5302687225.

The spelling of 899478 in words is "eight hundred ninety-nine thousand, four hundred seventy-eight".