7378685 has 4 divisors (see below), whose sum is σ = 8854428. Its totient is φ = 5902944.

The previous prime is 7378661. The next prime is 7378687. The reversal of 7378685 is 5868737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5868737 = 7 ⋅838391.

It can be written as a sum of positive squares in 2 ways, for example, as 5410276 + 1968409 = 2326^2 + 1403^2 .

It is a cyclic number.

It is not a de Polignac number, because 7378685 - 2¹⁰ = 7377661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7378687) 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, 737864 + ... + 737873.

It is an arithmetic number, because the mean of its divisors is an integer number (2213607).

Almost surely, 2^7378685 is an apocalyptic number.

It is an amenable number.

7378685 is a deficient number, since it is larger than the sum of its proper divisors (1475743).

7378685 is a wasteful number, since it uses less digits than its factorization.

7378685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475742.

The product of its digits is 282240, while the sum is 44.

The square root of 7378685 is about 2716.3735015642. The cubic root of 7378685 is about 194.6822350380.

The spelling of 7378685 in words is "seven million, three hundred seventy-eight thousand, six hundred eighty-five".