8667990 has 96 divisors (see below), whose sum is σ = 24541920. Its totient is φ = 2115072.

The previous prime is 8667979. The next prime is 8668001. The reversal of 8667990 is 997668.

It is an interprime number because it is at equal distance from previous prime (8667979) and next prime (8668001).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63202 + ... + 63338.

It is an arithmetic number, because the mean of its divisors is an integer number (255645).

Almost surely, 2^8667990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8667990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12270960).

8667990 is an abundant number, since it is smaller than the sum of its proper divisors (15873930).

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

8667990 is a wasteful number, since it uses less digits than its factorization.

8667990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 8667990 is about 2944.1450371882. The cubic root of 8667990 is about 205.4184591337.

The spelling of 8667990 in words is "eight million, six hundred sixty-seven thousand, nine hundred ninety".