8479890 has 120 divisors (see below), whose sum is σ = 24894540. Its totient is φ = 2068416.

The previous prime is 8479883. The next prime is 8479903. The reversal of 8479890 is 989748.

It can be written as a sum of positive squares in 2 ways, for example, as 8450649 + 29241 = 2907^2 + 171^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 292396 + ... + 292424.

Almost surely, 2^8479890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8479890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12447270).

8479890 is an abundant number, since it is smaller than the sum of its proper divisors (16414650).

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

8479890 is a wasteful number, since it uses less digits than its factorization.

8479890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 58 counting only the distinct ones).

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

The square root of 8479890 is about 2912.0250685734. The cubic root of 8479890 is about 203.9216827400.

The spelling of 8479890 in words is "eight million, four hundred seventy-nine thousand, eight hundred ninety".