8469990 has 24 divisors (see below), whose sum is σ = 22022208. Its totient is φ = 2258640.

The previous prime is 8469977. The next prime is 8469997. The reversal of 8469990 is 999648.

8469990 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8469997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46966 + ... + 47145.

It is an arithmetic number, because the mean of its divisors is an integer number (917592).

Almost surely, 2^8469990 is an apocalyptic number.

8469990 is an abundant number, since it is smaller than the sum of its proper divisors (13552218).

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

8469990 is a wasteful number, since it uses less digits than its factorization.

8469990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94124 (or 94121 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 8469990 is about 2910.3247241502. The cubic root of 8469990 is about 203.8422944929.

The spelling of 8469990 in words is "eight million, four hundred sixty-nine thousand, nine hundred ninety".