8423890 has 16 divisors (see below), whose sum is σ = 15225408. Its totient is φ = 3355696.

The previous prime is 8423887. The next prime is 8423893. The reversal of 8423890 is 983248.

It is an interprime number because it is at equal distance from previous prime (8423887) and next prime (8423893).

It is not an unprimeable number, because it can be changed into a prime (8423893) 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, 1029 + ... + 4231.

It is an arithmetic number, because the mean of its divisors is an integer number (951588).

Almost surely, 2^8423890 is an apocalyptic number.

8423890 is a deficient number, since it is larger than the sum of its proper divisors (6801518).

8423890 is a wasteful number, since it uses less digits than its factorization.

8423890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 8423890 is about 2902.3938395745. The cubic root of 8423890 is about 203.4718009330.

The spelling of 8423890 in words is "eight million, four hundred twenty-three thousand, eight hundred ninety".