7398665 has 4 divisors (see below), whose sum is σ = 8878404. Its totient is φ = 5918928.

The previous prime is 7398661. The next prime is 7398667. The reversal of 7398665 is 5668937.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1430416 + 5968249 = 1196^2 + 2443^2 .

It is a cyclic number.

It is not a de Polignac number, because 7398665 - 2² = 7398661 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 739862 + ... + 739871.

It is an arithmetic number, because the mean of its divisors is an integer number (2219601).

Almost surely, 2^7398665 is an apocalyptic number.

It is an amenable number.

7398665 is a deficient number, since it is larger than the sum of its proper divisors (1479739).

7398665 is a wasteful number, since it uses less digits than its factorization.

7398665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479738.

The product of its digits is 272160, while the sum is 44.

The square root of 7398665 is about 2720.0487127991. The cubic root of 7398665 is about 194.8577968280.

The spelling of 7398665 in words is "seven million, three hundred ninety-eight thousand, six hundred sixty-five".