7426664 has 16 divisors (see below), whose sum is σ = 15914400. Its totient is φ = 3182832.

The previous prime is 7426651. The next prime is 7426667. The reversal of 7426664 is 4666247.

It is a happy number.

7426664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7426667) 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, 66254 + ... + 66365.

It is an arithmetic number, because the mean of its divisors is an integer number (994650).

Almost surely, 2^7426664 is an apocalyptic number.

It is an amenable number.

7426664 is an abundant number, since it is smaller than the sum of its proper divisors (8487736).

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

7426664 is a wasteful number, since it uses less digits than its factorization.

7426664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132632 (or 132628 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 7426664 is about 2725.1906355336. The cubic root of 7426664 is about 195.1032895699.

The spelling of 7426664 in words is "seven million, four hundred twenty-six thousand, six hundred sixty-four".