899378 has 4 divisors (see below), whose sum is σ = 1349070. Its totient is φ = 449688.

The previous prime is 899321. The next prime is 899387. The reversal of 899378 is 873998.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873998 = 2 ⋅436999.

It can be written as a sum of positive squares in only one way, i.e., 822649 + 76729 = 907^2 + 277^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224843 + ... + 224846.

2⁸⁹⁹³⁷⁸ is an apocalyptic number.

899378 is a deficient number, since it is larger than the sum of its proper divisors (449692).

899378 is a wasteful number, since it uses less digits than its factorization.

899378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449691.

The product of its digits is 108864, while the sum is 44.

The square root of 899378 is about 948.3554186063. The cubic root of 899378 is about 96.5266913200.

The spelling of 899378 in words is "eight hundred ninety-nine thousand, three hundred seventy-eight".