879490 has 16 divisors (see below), whose sum is σ = 1626552. Its totient is φ = 342144.

The previous prime is 879457. The next prime is 879493. The reversal of 879490 is 94978.

It is a happy number.

879490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 808201 + 71289 = 899^2 + 267^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (879493) by changing a digit.

879490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819 + ... + 1558.

2⁸⁷⁹⁴⁹⁰ is an apocalyptic number.

879490 is a deficient number, since it is larger than the sum of its proper divisors (747062).

879490 is a wasteful number, since it uses less digits than its factorization.

879490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 879490 is about 937.8112816553. The cubic root of 879490 is about 95.8098812599.

It can be divided in two parts, 879 and 490, that added together give a square (1369 = 37²).

The spelling of 879490 in words is "eight hundred seventy-nine thousand, four hundred ninety".