8427722 has 16 divisors (see below), whose sum is σ = 13138944. Its totient is φ = 4050000.

The previous prime is 8427721. The next prime is 8427739. The reversal of 8427722 is 2277248.

It is a happy number.

It is a d-powerful number, because it can be written as 8 + 4⁵ + 2⁹ + 7⁴ + 7⁴ + 2¹⁵ + 2²³ .

It is not an unprimeable number, because it can be changed into a prime (8427721) 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, 10847 + ... + 11597.

It is an arithmetic number, because the mean of its divisors is an integer number (821184).

Almost surely, 2^8427722 is an apocalyptic number.

8427722 is a deficient number, since it is larger than the sum of its proper divisors (4711222).

8427722 is a wasteful number, since it uses less digits than its factorization.

8427722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its digits is 12544, while the sum is 32.

The square root of 8427722 is about 2903.0539092480. The cubic root of 8427722 is about 203.5026491414.

The spelling of 8427722 in words is "eight million, four hundred twenty-seven thousand, seven hundred twenty-two".