8423620 has 12 divisors (see below), whose sum is σ = 17689644. Its totient is φ = 3369440.

The previous prime is 8423617. The next prime is 8423621. The reversal of 8423620 is 263248.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5161984 + 3261636 = 2272^2 + 1806^2 .

It is not an unprimeable number, because it can be changed into a prime (8423621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210571 + ... + 210610.

It is an arithmetic number, because the mean of its divisors is an integer number (1474137).

Almost surely, 2^8423620 is an apocalyptic number.

It is an amenable number.

8423620 is an abundant number, since it is smaller than the sum of its proper divisors (9266024).

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

8423620 is a wasteful number, since it uses less digits than its factorization.

8423620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421190 (or 421188 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 8423620 is about 2902.3473258726. The cubic root of 8423620 is about 203.4696270373.

Adding to 8423620 its reverse (263248), we get a palindrome (8686868).

The spelling of 8423620 in words is "eight million, four hundred twenty-three thousand, six hundred twenty".