7398666 has 72 divisors (see below), whose sum is σ = 18258240. Its totient is φ = 2162160.

The previous prime is 7398661. The next prime is 7398667. The reversal of 7398666 is 6668937.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7398661) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93615 + ... + 93693.

Almost surely, 2^7398666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7398666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9129120).

7398666 is an abundant number, since it is smaller than the sum of its proper divisors (10859574).

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

7398666 is a wasteful number, since it uses less digits than its factorization.

7398666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 138 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 7398666 is about 2720.0488966193. The cubic root of 7398666 is about 194.8578056070.

The spelling of 7398666 in words is "seven million, three hundred ninety-eight thousand, six hundred sixty-six".